Lead is Dead! $229 LFP Siekon 12V 100Ah w/ 150A BMS and Low Temp Charging?!

Siekon 100Ah Direct Purchase (affiliate link): goaff.pro/tgbigt
Be sure to save with "WITHWILL2" Coupon Code
12V batteries I recommend: www.mobile-sol...
0:00 Quick rant about Lead Acid vs Lithium
1:30 Siekon Intro and Capacity Test
2:24 Teardown!
3:05 Low Temp Test
3:32 Load Testing! Surge and Continuous
8:11 Litime Comparison And Conclusion
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Does off-grid solar confuse you?
Check out my DIY friendly website for solar system blueprints and current product recommendations, and so much more!
www.mobile-sola...
Join our DIY solar community
#1 largest solar forum on the internet for beginners and professionals alike:
www.diysolarfo...
Check out my Book
Best-selling and beginner-friendly guide to 12V off-grid solar!
amzn.to/2Aj4dX4
My Favorite Online Stores for DIY Solar Products:
Signature Solar
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:
www.signatures...
Current Connected
SOK, Victron, Mr.Cool Heatpumps and High Quality Components. Fantastic customer support:
currentconnect...
Epoch Batteries
My favorite high-quality 12V battery:
www.epochbatte...
Litime
My favorite 12V budget battery!:
www.litime.com...
Watts247
Need international shipping for large batteries and big inverters? Check them out!
watts247.com/?...
Renogy
A classic 12V solar store that has been around for ages! DC to DC Chargers and more!
renogy.sjv.io/...
Rich Solar
Renogy's biggest competitor! Similar products, but at a better price:
richsolar.com/...
Battery Hookup
Cheap cell deals
bit.ly/2mIxSqt
5% off code: diysolar
Contact Information:
I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: [e-mail]
Join the forum at diysolarforum.... if you wish to hang out with myself and others and talk about solar
FTC Disclosure Statement and Disclaimers:
Every video includes paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :) DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

[@WillProwse]

Siekon 100Ah Direct Purchase (affiliate link): goaff.pro/tgbigt Be sure to save with "WITHWILL2" Coupon Code 12V batteries I recommend: www.mobile-solarpower.com/lithium-batteries.html 0:00 Quick rant about Lead Acid vs Lithium 1:30 Siekon Intro and Capacity Test 2:24 Teardown! 3:05 Low Temp Test 3:32 Load Testing! Surge and Continuous 8:11 Litime Comparison And Conclusion ~~~~~~~~~~~~~~~~~~~~~~~~~~~ *Does off-grid solar confuse you?* Check out my DIY friendly website for solar system blueprints and current product recommendations, and so much more! www.mobile-solarpower.com *Join our DIY solar community* #1 largest solar forum on the internet for beginners and professionals alike: www.diysolarforum.com *Check out my Book* Best-selling and beginner-friendly guide to 12V off-grid solar! amzn.to/2Aj4dX4 *My Favorite Online Stores for DIY Solar Products:* *Signature Solar* Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps: www.signaturesolar.com/?ref=h-cvbzfahsek *Current Connected* SOK, Victron, Mr.Cool Heatpumps and High Quality Components. Fantastic customer support: currentconnected.com/?ref=wp *Epoch Batteries* My favorite high-quality 12V battery: www.epochbatteries.com/products/12v-460ah-lifepo4-battery-ip67-heated-bluetooth-victron-comms?rfsn=7352625.50494d *Litime* My favorite 12V budget battery!: www.litime.com/?ref=XBIA62RFcalHns *Watts247* Need international shipping for large batteries and big inverters? Check them out! watts247.com/?wpam_id=3 *Renogy* A classic 12V solar store that has been around for ages! DC to DC Chargers and more! renogy.sjv.io/n1VjXx *Rich Solar* Renogy's biggest competitor! Similar products, but at a better price: richsolar.com/?ref=h-cvbzfahsek *Battery Hookup* Cheap cell deals bit.ly/2mIxSqt 5% off code: diysolar *Contact Information:* I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: [e-mail] Join the forum at diysolarforum.com/ if you wish to hang out with myself and others and talk about solar *FTC Disclosure Statement and Disclaimers:* Every video includes paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :) DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program, An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.comm

[@my_channel_44]

Man, these are badass. 2 x 600cca's paralleled will start 99% of regular trucks. They typically have room for two batteries.

[@mochouinard]

Now you need to start doing check about how well they are sealed. Maybe use some kind of vacuum pump instead of dumping them into water ;) One thing that would be great, is a battery that you could just put along side a lead battery. What I mean by that, is for example, my friend have a sailboat. Her budget is super limited, and her battery will need to be replaced. But she do have a Diesel Engine that the battery need to be able to start. Her system allow 2 battery, and she have a battery selector that allow to select individual battery, or both batteries. I would love to help her out and get her a LifePo4 battery, but I see multiple problem... First the battery selector, can cause issues, as one battery might be low, while the other one full, so switching to Both battery option, then you have the 2 battery having rush current into them... And with the battery you just shown, if there is no protection at all, it would rush at what... 600amp between the batteries ? This doesn't seem to be a problem with her Lead battery. And can I start safely a Diesel engine from these batteries ?... As for me, I do have a Ecoflow Delta 2, and I do have 48volt battery system. It would be great to have a battery like this to supplement my Delta 2 on the cheap, but the max at 12volt would be 166watt I can input into my Delta 2 from the DC IN port at 13volt. So I'm not sure how useful it would be (and maybe that 166watt have a good % lost in conversion as well...). I could use 2 of these batteries in series and get 2kWh... It just suck that there is empty space inside.

[@trevortrevortsr2]

Fun Fact : We call people who lived in the past here in Blighty " Luddites" after the hand weavers who rioted and started to smash up the new mechanical weaving looms - for a while the weaving factories were built like forts.

[@xBucket13x]

did you happen to do any temp readings while the case was still on. i am wondering if the temp sensors would have shut down if the case is left on

[@stephsoltesz6731]

Will, I have to raise the Red Flag here. They are obviously not using High C-Rate LFP cells but just regular Prismatics. Nothing wrong with that, except you exceed the specified C-Rates such as 2C and even 3C discharging. Burst Discharges within spec are OK but not this. It may be prudent to check out the cells specifically, locate that companies spec sheet and take that into consideration. In my opinion, allowing such heavy discharges will have consequences and potentially most unpleasant ones.

[@PursellEditing]

Can I just take a second to thank you for not using those stupid sensationalist youtube thumbnails that all creators do

[@jasonpotts6490]

Thanks for continuing to do the battery teardowns. I know it seems they have been done to death, but the market and offerings keep changing and it's good to see what's currently on the market instead of taking a gamble.

[@DobleWhiteAndStabley]

Ive been using 8, 100 amp 12 volt weize lifepo4 batteries in my van. Im able to run the ac all night and keep my shower water hot and ready for the morning, while running a dorm fridge/freezer. Im so happy I don't have to have a thousand pounds of lead in my van for the same performance. It takes at least 4 times longer to charge a lead acid battery bank, for the equivilant capacity of lifepo4. Im not dying this summer and I am so grateful.

[@carminec4000]

I'm just learning about solar. Why 8 batteries? Could you have gone with fewer batteries at a higher DC voltage (48v) to get the same desired available wattage? Or do you specifically need the 12 volts? Thank you

[@my_channel_44]

@@carminec4000 Either way you slice it, he needs the capacity to do that all night. The real question, is how does he recharge it during the day? Alternator, generator, and what proportion is solar? What is the SEER rating of your unit, and what brand/make do you use?

[@higbeedoug]

Yes, what are you using for an AC unit?

[@357smallblock]

Lmk how winter goes

[@DobleWhiteAndStabley]

@@carminec4000 no. You need volts, and amps, to make watts. Watt hours are a measure of capacity. If you cut the amount of batteries in half, you get half capacity in the bank. 12 volts was what I had. Higher voltage systems are better.

[@toddwmac]

"That was so weird! I was not able to get enough load to test this new battery, so I built a Very Small Hadron Collider that encircles my house. Let me get the plug and we'll test it out" - Things Will would say.

[@mindfornication4funn]

Will is against Hadron Colliders...

[@bwiz6514]

I don't follow solar or batteries, but I check out Will every once in awhile to boost my hope in humanity.

[@glossywhite8634]

LFP patents in the US ended in 2021 and 2022 I think. Ever since then every car manufacturer of EVs started using LFP in their battery chemstry. That should tell you all you need to know about where the market is moving.

[@derekk7881]

Same here! 😂

You don't follow... like you burn gas and coal hoping others go green or what?

[@UnknownIdaho]

Will is great! He gets excited when something fails and even MORE excited when it exceeds expectations!

[@Banagal]

Thank you for the review. I'll buy a couple of these. We bought two Battleborn batteries for $1K each, and one died after a little over a year. We contacted Battleborn, as battery was under warranty. Battleborn did NOTHING, except have us check and recheck the battery. We proved the battery was dead and would not charge. Battleborn did NOTHING, NOTHING, NOTHING. I would NOT recommend buying Battleborn because they don't support their product, nor warranty.

[@robbehr8806]

Please, post a review of the Siekon batteries to Will's forum.

[@pearlydeer4555]

I bought two big Battleborn batteries (270 ah each). Very expensive. Connected two in series, keep having balancing issues. I regret my purchase.

[@robbehr8806]

@@pearlydeer4555 ; Do you think it's that the batteries need updating to current standards, your batteries were bad production, or what?

[@TobyCostaRica]

Battleborn has the audacity to hold their prices where they are AND offer that level of customer service

[@pearlydeer4555]

@@robbehr8806 Not sure what the issue is. This is the third year using these with the 24 volt Growatt. Had balancing issues in the first 6 months.

[@Snerdles]

On the Siekon website their image says 6000+ cycles but that is based off of 0.5C rate at 25 degrees Celsius to 80%DOD. Their 5000 cycle graph is based off of sinilar but 100% DOD. That's why the numbers were different.

[@WillProwse]

Thank you good call

[@DIYDaveT]

These videos are exactly what DIY solar people need. Well done, and thanks!

[@tyger13us]

i binged watched his videos yesterday,, i think i got 35 videos watched so far.. been fallowing him for awhile, The best reviewer ive found.....

[@my_channel_44]

Welcome 🎉

[@Homested_Retirement]

Will is the best

[@pubora]

Agreed The best reveiwer

[@mikethetoolman8776]

sheldons doppleganger is a sharp guy on these batteries and charging system!!

[@ryanyoder7573]

Yeah but he doesn’t wear a lab coat and gloves.

[@bertschb]

Love your enthusiasm Will. Really makes your videos fun to watch!

[@TheSimpleLivingAussie]

Been off grid for 25 years running Lead Acid batteries until 3 years ago when my battery bank needed replacing. So I switched over to Lithium and haven't looked back. Lithium (LFP) is a game changer and way out preforms FLA batteries in every way and by miles 👍

[@raywmontgomery]

Were you able to use your same inverter or did you have to replace it as well?

[@JRP3]

Nice to see cheaper batteries that don't cheap out on a low current BMS that limits the output.

[@gg-gn3re]

Yep. Nice BMS, useful with bad/no over current protection like lead acids are.. could hurt itself though

[@Max_Janszen]

My god I paid $620 apiece for two SOK LFPs to put in my truck. They've served me faithfully and I don't regret the purchase at this point but damn, could have saved like $500 on my build

[@tomashubelbauer]

My thoughts throughout this entire video… I really like my SOK, but for my next expansion, I am getting a handful of these or similar well performing low-cost ones.

[@faustinpippin9208]

Thats why im still waiting with buying a ev, the technology is getting so good so fast and the price drops all the time,

[@Max_Janszen]

@@tomashubelbauer yeah I like serviceability, that's all I want really is to be able to swap cells out and rebalance

[@ristekostadinov2820]

Well LFP batteries in the car industry in China have reached to 55-60$ per KWh (i would imagine it is without the hardware supporting them, but still) so 229$ is plausible.

[@TobyCostaRica]

@@Max_Janszen You don’t want to know how much I paid for 8mb of RAM in the early 90s

[@johnzach2057]

New eve cells are now $60-$80 in China. This is insane. Being able to go off grid will become so much easier in the next few years in sunny places. Prices of assembled LFPs will likely drop to around $100 per Kwh soon if not already.

[@91CavGT5]

You can already find them at that price at Battery Hookup.

[@timsteinkamp2245]

I'm leery at $500 for a 280 AH. You cannot monitor them. They say they have all the features of the top of line BMS. I guess the savings is trusting the BMS and it is nice not to monitor it. I worried about flooded batteries for years. I monitor the inverter and solar controller which is enough.

[@jebediahkerman3946]

I saw on their website a reference to a 200ah model. Couldn't find it there, but checked Amazon and it's there for $399.99. Would be interesting to see you review that one, Will.

[@williamwilson6499]

With current $25 coupon and Will’s code, I ordered two on the Big A for $407.38 before tax.

[@danvilleneuve9910]

Thanks for the tip Will. What's cool is between the time you filmed this and now (an hour after release of the video), these batteries went on sale. F'n A!

[@SvetzBowman]

Thanks Will! Keep at it, there's a lot of new tech changes coming and the prices are going to keep falling too!

[@bigbird-xm]

This is Awesome!! The guys over a Camping World have all kinds of Off Road custom built 4x4 RV's come in and i'm one of them. Today they just told me to get LiFePO4 batteries was recommended for my Off-Road E450 adventure 4x4 RV because that heat wave in Oregon last week in July/2024 @ 105deg Killed all are Marine deep cycle batteries. I'm taking the 4 out and putting 8 of the LiFePO4 batteries back in. Thank you for this Awesome Review Video. It just helped me a lot.

[@thomaskight4620]

I'm having the same problem. Mine are all dead again after 4 years and that heat wave didn't help. I just found them on line, but I only have 2. I think getting 4 would be the way to go. Unbelievable battery that it can run a car lift and a air compressor. I love this channel.

[@harryhoesch3793]

Sold. Couldn't wait for Prime day chance on beating todays price, plus 25 more off.

[@s.mendez7160]

Without over current protection actually present and functional, I would put a Class-T fuse in series with that battery. Too much risk of melting insulation and starting a fire, if there was an internal failure...

[@tyronetrump1612]

There should be a class T used regardless of battery technology

[@ReflectedMiles]

@@tyronetrump1612 But in this case it could well be your single line of defense against overcurrent, and we don't know how much or what will happen .... Will the BMS catch fire with a direct short instead of shutting off the output? I would personally be hesitant to promote this battery until the issue is fully understood and fixed.

[@mattmayfield3520]

Over current protection seems like an important safety feature. Why is Will so casual about it missing? Is the external fuse the ‘real protection’ in such a system or is this a belt and suspenders strategy where it is so important that redundant strategies make sense and this is potentially dangerous for a more complex mobile system.

[@1dgrdgr]

@@mattmayfield3520 MOSFETs commonly fail dead shorted. Relying on one as the overall protection in a circuit is less than ideal. The correct fuse will fail open.

[@georgecarousos6735]

IMO no over current protection is way worse than tripping to soon. Nothing more exciting than when your cables become a welder when you don't expect it.

[@judd_s5643]

Put a fuse in line!

[@CGT80]

A smart person can limit how much power they draw........use enough batteries for your inverter and it should trip the low voltage protection from draining the battery and not have a problem. Fuses are a good idea from the other person responding. Buy a more expensive battery and it may not be something you have to think about......your choice. Yes, it would be better if they performed as advertised, but it is cheap.

[@alpha1inspectionservices]

I love it when you Geek out over this subject. Props!

[@winstonpittman420]

I thank you so much for teaching me how to get my sailboat totally solar powered with 3 days reserve

[@whatdoesnt]

Can’t wait to put this in my kids power wheels 🛻

[@suecrets5169]

Amazon has $25 plus Wills code. Got for 207 with NY state tax

[@dolbyatmos866]

$209 with TN tax and Promo code 👍🏻

[@GimiH1]

$190 on their site.

[@suecrets5169]

@@GimiH1 OMG figures

[@johnuppole]

@@GimiH1yep, free shipping and no sales tax... I picked up two.

[@_s.i.s.u.]

Official website now shows $240 - 6% will code

[@cjextreme]

Every time you get blown away by how well something works that's probably not supposed to, all I see are exec's doing backflips😊.

[@ualdayan]

The specs for the battery on Siekon's website are 100A continuous charge/discharge and 300A surge - I wonder if they changed that after your video was made.

[@robbehr8806]

Hi Will, I live in Arizona. I'm very interested in the thermal testing, especially in your cargo trailer. Just like in Las Vegas, heat is an issue, here in the desert. So, maybe do a full and comprehensive video on thermal effects and testing. Maybe, include segments from previous videos that touched on the subject. Love your videos!

[@my_channel_44]

@@robbehr8806 Your LFPo's should be in-cabin for thermal reasons. Why, do you put them in an uninsulated basement?

[@robbehr8806]

@@my_channel_44 ; I definitely plan to install the battery in-cabin, but in Arizona, if cooling fails or is shut off, temps in a trailer can reach 140F.

[@my_channel_44]

@@robbehr8806 Then design a system where that's not going to happen.

[@GrammaHuneePopPop]

Thanks again for the great review. I have not built a solar system yet and am not very knowledgeable about electricity/power management systems. But I need to learn as I build our off-grid home on our land. Your videos make me feel more confident that I can build my own off-grid solar system. Thank you for all the videos and guidance.

[@campcreekhill8933]

Get his book aswell, it's a great reference for the bookshelf

[@richardbergin]

Without your battery teardowns, we the consumer would be absolutely screwed. Lithium batteries wouldn’t have been adopted so quickly, because it would be too much of a gamble for most of us. I’d buy these based on your results! Thanks!

[@Lee_Adamson_OCF]

The overcurrent protection is when something melts. XD

[@ahaveland]

and every wire is a fuse!

[@MaxSUNAAptera]

@@ahaveland We would use the term, Linear Activated Fuse

[@Electronzap]

Nice, prices did drop a lot. And I haven't come across people saying that quality has gone down.

[@nicksanta]

Hello! Will, thanks for all of your fine work! Regards

[@gkambs]

Great stuff as usual. You are the holy grail when it comes to learning me some solid solar solutions. Love your enthusiasm!

[@RobbertRob]

Hey will. Always enjoy your videos especially how you really get into it You're so awesome.

[@briankohlenberg]

Sold out..good job guys

[@lightitrun5209]

Wow, 2 years ago I scratch built a 12v 200ah with all the bells and whistles. Cost was around $800. Had to install a 5amp active balancer (new version) Battery has been working pretty much flawlessly -15° - 95° for 2+ years. Enjoyed learning and building one, but why build one from scratch now? Thanks Will, with a mention to Andy @ Off Grid Garage.

[@jayw900]

Because it is still technically cheaper to diy. He has a few videos about this. At these prices, i wouldn't.

[@91CavGT5]

2 1/2 years ago I built a 300ah 12 volt lithium battery and it cost $750. At that time, I felt as though it was a smoking deal. My battery is still going strong as well having used it every day since it was built. But it is crazy how much prices have come down in such a short period of time!

[@my_channel_44]

@@lightitrun5209 5 amp? What kind?

[@CGT80]

A month ago, I bought a heated 200ah 12v from Li Time for $720 plus tax in comnifornia. A year or so ago, I considered building my own but like others said, it was a no brainer to spend the money and have something ready to go for my travel trailer. The finished package is better than if I had done the DIY route and tried to not go heater or added my own heaters.

[@vinceoneal31]

I put a lithium battery in my zero turn 2 years ago and have not had to even look at it. I love that thing. I'm going to get one for my Harley as well.

[@raywmontgomery]

What battery did you buy? Does the zero turn recharge it?

[@vinceoneal31]

@@raywmontgomery NOCO Lithium NLP14, and yes the mower charges it

[@dondonaldson1684]

The limitations for LFP are being overcome 👉 low temp, 1C charge rates and discharge rates and capacity. This battery "does not have over-current protection" which is a red flag, but setting low voltage cutout is a workaround. Repeated high discharge will have an impact on reliability, but with perhaps a BMS software change, this issue is easily mitigated. Another simple solution is to buy 2 or 4 and run them on a 24 or 48V system, which then reduces peak current output loading. Great review Will, I hope you can do a deeper dive on BMS programming.

[@Tumbleweed5150]

Don't need all that for protection. Any electrician can tell you that an "overcurrent protection device" is usually in the form of the correct Amp and Voltage rated fuse or breaker. Just get a DC rated breaker that is lower than the maximum current one wants to see. Done deal. LOL

[@MrHanzeeman]

I second that. Electrician here... In-line fuse or breaker for my system.​@@Tumbleweed5150

[@iEnigma121]

Hey Will, I was able to order 2 batteries last month off Amazon for $134.99 per battery. They were 12v 100Ah LiFePo4 batteries with 100A bms. I paid $288 for both total shipped to my home. Seller took availability down shortly after on the listing 😂.

[@dianaj3139]

THANK YOU WILL!! I don't have the budget for the fancy stuff this is hopeful!

[@precisionhomesdesign]

Great Review! The listing for these batteries say, "The batteries used in series should be fully charged before connecting them. Disconnect and charge each battery separately every time to avoid power imbalance in the series system." (6th image: Flexible Connection Options). If this is true, then these are not good at all for connecting in series. Disconnecting each battery from a series string for each charge makes this battery only good as a single battery.

[@raytruesdell7873]

Great video be safe everyone

[@DesertRunner9875]

Are you going to be testing the Sodium ion batteries

[@aprilwine132]

Love your show I have three off grid dwellings First one still has AGM that have been working well for about 8 years . Second one which is my main dwelling has 4 Relion 300ah in series to give me a 48v system. I pain $3000 each for those batteries 6 years ago. Still going strong, but $12000 for 4 batteries.😞 My third is an rv with Li Time i bought at you recommendation. Great battery and good customer service . So good to see them go down in price! Very gappy to find your channel a couple years ago. Thank you SO much for your channel!

[@davefroman4700]

You ain't seen nothing yet. The cost of cells in China has plummeted over the last 6 months. LFP is down to $56/Kw now. In a year or so from now I bet we see 5kw rack battery prices less than $800

[@tim1299]

Did they send you the battery or did you get one off the shelf?

[@garyaltenburger6667]

I have been using solar systems for about ten years. Components have been very reliable. I can't say the same about my deep cycle lead acid batteries. I even tried 6 volt golf cart batteries. They were no better. And, yes, I never discharged my batteries below 50 percent. I eventually went to sealed and even AGM batteries. I got tired of having to add water. I have two different systems in the house. I was seriously considering doing away with one of the systems when the two 200AH batteries died. After a lot of thought I decided to try a lithium battery. I had to buy a charger suitable for lithium batteries. I bought one 200AH lithium batteries and was pleased to see that it easily replaced the two lead acid batteries, I now will NEVER buy another lead acid battery. It is amazing and has made my solar system totally trouble free and the life of this battery should be much longer.

[@tunanocrustgarage]

I am building an off grid property just 1 hour outside of Las Vegas on the north end of the town of Pahrump. I am using Lead Acid for my battery bank currently. In the future I do want to add a lithium bank as cost was the factor. But with declining prices we can start entertaining buying 4 of these at a time. Currently I have been adding 4 NAPA HD Lead Acid batteries at a time for 48v on each series. Currently running 3 banks in parallel. Running AC unit, refrigerator and security equipment 24/7. Eventually this system will be expanded to also power our house and shop.

[@KEAWE7]

Wow! That looks like it is a good battery.

[@tradeup2crypto]

These batteries would be good for a self build rv with ac unit. Like a window unit. No soft start needed.

[@EricMosegard]

That was awesome! Thank you so much! You do a great job. I've been watching you for quite some time now

[@toddshook1765]

Thank Will. With all the influencers you have the most validity. Been following you for years. Thanks for testing this battery out. Been looking online and Renogy batteries. Need to get 2 for my RV trailer.

[@xBucket13x]

with all the new AIO hitting the market, combined with these Batteries, plus their low cost, weight and high capacity. Looks like its time for a new 24v/48v handcart portable POWER STATION Build!!!!

[@dfwvtxman]

Decent for the price for sure but why do they keep putting them in the old size box? They could have used a much smaller box. Most people have limited space for multiple batteries. Smaller package would work so much better in campervans.

[@krashanb5767]

Yeah, I was wondering, why so much empty space in there?

[@rogerhargreaves2272]

Probably because they produce a 120ah version and using the same box keeps costs down.

[@dfwvtxman]

@@rogerhargreaves2272 Maybe but it looks like it could hold close to 200ah.

[@rogerhargreaves2272]

@@dfwvtxman quite possibly. 😃👍

[@MarkBracewell]

Now do the HQST that's $185! Thanks for all the fun!

[@jeremyvelkoff1487]

Will, thanks for your great reviews. It's great that you check out these affordable batteries giving us all a reference for comparing the products available today.

[@elberttanner6189]

Do I understand that the lack of over current protection could be solved with an appropriately rated circuit breaker at the feed point.

[@enigma9789]

Yes

[@boblatkey7160]

👍

[@Dirt-Diggler]

Get rid of the foam, use a smaller case, call it a mini and charge more 👍

[@Tumbleweed5150]

That's exactly what Li-Time did. I got the ones I have on sale for $250 each, but they've gone back up to over $300, I think.

[@D0praise]

Nice enthusiasm Will

[@user-ik4pp6wn5c]

Crazy that every single 5 star review on Amazon for these was in turn for a free product. There are more than 50. And the one bad review is the guy who didn’t get one for free. All they gotta do is make a handful of good ones, give ‘em out then slowly scale back the quality. Make sure do give all the KZbinrs the best example they can muster. We are the product.

[@JeffAdairKTM530]

when these can go under the hood it will change the game forever

[@my_channel_44]

Dakota Lithium.

[@Trevathecleva82]

Epoch batteries is making a 12v lithium cranking battery. It's around 600 last time I checked.

[@JohnResciniti]

Why aren't they? Like with all the BMS protection why is an alternator an issue? I have a small one on my garden tractor that is used less than one time a week. I have a solar panel charging it all the time, and the starter/generator of the tractor hasn't had any negative effects over the past 2 years. I still don't understand why a car is alternator would be bad for it if the BMS could protect it from overcharging.

[@SnifferSock]

​@Trevathecleva82 oh that thing is sick. $700 is rough but it'll probably outlast the car you put it in.

[@318East]

Yeah, I've been using a motorcycle LFP battery in my car to save weight for a while now. Some cheap Amazon brand that has it's own BMS.

[@hwoodist]

Just ordered one

[@rf_dude]

Your reviews are good and revealing. Thank you! Visually notable, but not mentioned is when you pulled out the guts from the case, a lot of padding is visible (black foam spacers), which serve a role to protect the working components from shock, drop deformation or shallow penetration damage. Some off-shore vendors to North America are now certifying their Lithium battery product to UL-1973 (Safety standard for Energy Storage Systems) and UN 38.3 (environmental, electrical, and mechanical safety requirements) for transportation purposes. Fire Departments are finding home assembled systems from off-prime/quality sources causing fires and are now questioning the general availability of volatile battery systems that don't have any proof of safety and quality conformance. While a certification is not an expectation through your reviews, being aware and referencing what you see with what "could" (or wouldn't) pass under the two mentioned standards would be a value adder! Even if a manufacturer has no intention of submitting for certification, they can know, understand and inherently attempt to build to the standard.

[@tonysmith9061]

Always love your battery tear downs! Passing tests is not boring!

[@RASDB7]

Wow simply amazing.

[@chrisbrown4570]

$190 on the Siekon website!

[@justinw1765]

I just checked, didn't see any for 190.

[@D2O2]

$229 now on website. Gone off Amazon.

[@johnhumphries4632]

Will, Thanks for the review.

[@brianhopkins5644]

The Roy pow batteries that you liked is $199 on Amazon right now so I got a couple of those. But I agree I think lead for an aux battery is pretty much dead at this point.

[@neilrankin9945]

Yes lithium are great for most applications. I still prefer agm batteries for high amp situations like Rv stabilizer jacks

[@my_channel_44]

li time is making a clone of dakota lithium with a 500ah surge capacity. Yeah, it's not a DH (yet) 😂

[@s.mendez7160]

Have you measured the current draw on your stabilizer jack? Seems the motor would not come close to drawing what an LFP battery could deliver.

[@timnagy2411]

Ordered from Amazon, with discounts and an extra $25 off, $202. This'll do well as a house battery for my sailboat

[@patpatpat999]

Put a big fuse in line and the overcurrent problem is mostly overcome (unless you have a short internal to the battery)

[@MRHEAT20]

I wasn’t ready for a battery switch but your review popped up - I watched it - and I learned something- thanks for posting this great review 🍻

[@matd3150]

$190 with free shipping is crazy! I wish i had a use for one

[@marcarcher5426]

Where are you seeing $190? I can't find that. Also Amazon limited to only 1

[@matd3150]

@marcarcher5426 on their website. I bought one for a shop battery to run my winch and random tests with. We will see if they actually ship

[@matd3150]

It's on the website

[@timsteinkamp2245]

Hook a cheap inverter to it and it can run a fridge, furnace fan and TV plus electronics if power goes out. Look at Texas now. There is no need anymore to be without. It won't run your AC now but maybe someday.

[@LithiumSolar]

These batteries all look the same anymore really. The cycle numbers are pretty pointless. They are all over the place even within the same companies, exactly as you pointed out. Additionally, pretty much nobody gives the conditions for which those ratings apply - such as 5000 cycles at a 1C charge/discharge to 80% state of health. It's silly, they'll keep one-upping one another by using lower discharge rates to get higher numbers.

[@timsteinkamp2245]

Keep in mind someone may steel them. You are right but as prices drop we can abuse them and replace them. What about 10 year old solar panels? Replace, add more, when do we upgrade considering they are not recycling them.

[@ironclay3939]

I have 600ah leadacid, it's parked right outside the front door, the fire exit to my home ... and I trust it not to explode and I've been living off grid since 1999 . These are my second batteries, they replaced my original leadacid batteries not because they exploded and killed my family while they slept but because after 20 years my old ones had undergone a learning curve in battery management for the owner and now I know my power

[@LiveFreeOz]

We're about to go to AGM. We live on a boat and it's becoming very challenging to keep insurance companies happy with lithium. Hopefully that will change... Thanks for your fantastic videos 👍👍

[@Tumbleweed5150]

Make sure the insurance Co knows it's LiFePO4, not just lithium, as the newer LFP batteries do NOT get thermal run-away!

[@boblatkey7160]

@@Tumbleweed5150 all batteries can do a thermal runaway including lithium iron phosphate. That is pure hype and BS put out by the manufacturers. There are many scientific papers that show a lithium iron phosphate battery doing a thermal runaway.

[@Channel-gz9hm]

I know it's difficult to find someone with a capacity for understanding/a brain in the insurance business but find one, sit them down, and show them the difference between lithium ion and lithium iron phosphate. They are classing lithium iron phosphate as lithium ion and they are in totally separate realms with regard to fire risk.

[@LiveFreeOz]

@@Tumbleweed5150 thanks. We'll try that. Lifepo4 would be much nicer. Had a wee heart thing a bit back and they're soooooooooo much lighter!

[@LiveFreeOz]

@@Channel-gz9hm thanks 👍

Excellent review.

[@reversemyopia]

Video came just a days after I ordered 4S JBD Smart BMS and EVE 105Ah Cells.

[@scottthompson53]

Just ordered mine to replace a marine LA 12v for our small camping trailer. Ships 7/31/24. Thanks Will for sharing and your fantastic channel!! Wish you were near San Diego so I could get your help getting some of our power from the sunshine. Cheers

[@sgtcote1]

I'm new into solar, and I happen to have a small bank of 4dlt lead acid batteries. My only reason was the initial cost factor. Let's just say ill be getting these to replace my lead acid bank. To bad I can't blend batteries in a bank, lol. Thanks for souch an amazing breakdown and review.

[@alvalonline]

Watching the vid and gradually, Will's voice kind of fades into the background as my mind slowly ramps up its' concentration on that jumble of screwdrivers all over the place in the background. I'm mentally willing Will to reach back and begin organizing those things. Is there something wrong with me?

[@WillProwse]

🤣🤣🤣

[@RolftheRed]

Ditto - that is, until I look at MY workbench🤪

[@jrherita]

Really want a 48V of this for cheap!

[@timsteinkamp2245]

I agree lead is dead. I have been running lead for years and my last purchase was 16 -T105s at 24 volt. I was so tired of maintaining them I let them go dry before watering. I was just putting tap water in them. I got 5 years out of them. I was concerned I might have to buy one more set of lead and saw the Eco Worthy at Amazon for $2000 for 4 -12v 280 AH the size of an 8D. I had bought the 16 T105 for $2000 with no core charge. Now is the time to buy LiFePo4. It must be the reduction in EV sales and an overstock of batteries so the prices really came down. Battle Born charging $1000 for a 100AH is just too much. I have not cut open the case of my batteries and there is no blue tooth connection for monitoring. They say to check voltages every few months to make sure that each battery is fully charged. Thanks for your videos.

[@M22Research]

How soon we forget Chins! While their current price is $249 on Amazon, it has sold for less than $200, as low as $186, several times over recent months. And the Weize is currently $229 at Amazon. Fascinating this Siekon has so much current capacity. Although, not sure most folks are powering their car lifts with these batteries. ;-)

[@Kantuski]

I appreciate your reviews and was waiting/hoping you would review this battery, thank you! My comments are related to their protection claims, I have always thought low temp had 2 separate settings, low temp charging (around 32 F or 0 C) and low temp discharge (around 0 F or -15 C) only a temp controlled test would be able to properly evaluate and while dry ice or compressed air does activate the probe, we do not know at what temp and their website only showed, what I consider low temp discharge of 0 F, so maybe this would get damaged by trying to charge below freezing? That, with what you found on over current worries me. I have bought many of the Redodo brands and they show both low temp charge and low temp discharge, although I have never properly tested them and their prices are comparable. Keep up the great work as you are the standard I look to for accuracy.

[@auttiman5591]

The price isn’t bad but I just bought a 100ah for $169, so… not to be argumentative but maybe it’s time to go BIGGER! Please test the 260ah batteries. Ive been looking at one for $399.99 = $.12/wh

[@s.mendez7160]

Whose battery at that price? Can you post a link?

[@auttiman5591]

For which one, 260 or 100?

[@s.mendez7160]

@@auttiman5591 100Ah. Thank you.

[@ahmedelwan9129]

i am watching you from Egypt and i wanna tell you the price of this battery here is about 500$-1000$ that is why most of ppl here buy lead acid battery

[@treepop1550]

It would scare the daylights out of me to do these same tests on lead acid chemistry!!

[@jamesrussell9511]

Actually the Amazon page has a $25 coupon!! So it’s only $204!

[@craigalan7911]

The $25 coupon seems to be gone...

[@robertgroom4406]

I'm going to continue to use Lead Acid for any large battery power requirements in my house (my 4 UPS units specifically) for one simple reason - Lead Acid batteries do not turn into huge fireballs when they fail. I do not want to burn my house down because a cell in one of these batteries causes the whole unit to turn into an inferno. You can call any cost/performance differential the 'peace of mind' premium. I just would not have Lithium power source larger than a laptop battery in my home.

[@sweetpigfarm3645]

I got 3 x 12v 100ah lifepo4 in my golf cart we love them. So much lighter than lead too

[@georgehenry3384]

Wonder if it can be used for car batteries, what modifications would be required? Tesla now uses lithium low voltage battery instead of lead acid.

[@Tumbleweed5150]

Might work for an electric car, but not to start an ICE engine.

[@KevinCGleason]

Will, please do a video on charging LifPo with a lead-acid charger when the LifPo has a BMI. My RV mechanic said I have to change out my charger if I go to LifPo. I have heard that with a BMI any charger will do.

[@Tumbleweed5150]

The reason to change out a charger for LiFePO4 batteries is that the charger won't get the Voltage high enough. If you have a solar system installed with a LiFePO4 MPPT solar controller, and can get enough sun during the day, that would cover it. All of these kinds of batteries seem to have a passive balancing mode, but one needs to get the battery (bank) up to the highest recommended charging Voltage in order for that to work, which is why chargers for lead-acid don't work very well. If your battery charger is also a Converter, you may need to change it out.

[@glennbishop-smith9957]

Hey Will, just want you to know you're the reason I put an inverter and a couple of SOK 206's in my camping trailer in 2021, and it has been fantastic. The batteries run my espresso machine, the microwave, even the A/C. Thank you!!!

[@A_Canadian_In_Poland]

The problem I see with these is that the replacability of the individual cells if a few cells go bad is extremely difficult, even with a spot welder and pliers. I have even seen some BMS designed to brick themselves permanently if a cell is replaced.

[@jamesrussell9511]

Also found seikon has a 200 amp hour battery for $399 also on Amazon! Fingers crossed it’s as good as the 100 amp hour!???

[@Snailmailtrucker]

I bought 2 DeeSpaek 100 AH LiFePo4 batteries on Amazon for $169..00 each 3 months ago w/free shipping...seem to be working fine ! *FJB !*