Wattcycle 12V "300Ah" Battery: Popular Budget Battery Falsely Advertised?!

[@WillProwse]

Important update: $50 off coupon codes for signature solar do not work anymore! But you can get the $50 discount by clicking my affiliate link and disabling honey or other ad blockers: www.signaturesolar.com/?ref=h-cvbzfahsek Batteries Mentioned in Video (affiliate links): Wattcycle 300Ah (false advertising and requires fuse! Watch the video!): www.wattcycle.com/products/wattcycle-12v-300ah-mini-lifepo4-battery Ecoworthy 280Ah (still on sale!): amzn.to/4h4Hm4R Other 12V batteries I recommend: www.mobile-solarpower.com/lithium-batteries.html 0:00 Intro and Price/Size Comparison 1:55 Capacity Test 3:06 Charging with 175A 3:30 Over Current Protection Test 5:33 Teardown 6:16 Uh oh!

[@williammeek-h2o]

Thank you as always for great content. I almost bought that 300 Ah battery for a friend's fish pond solar powered pump. I might still get it as it still seems a good deal if not a great one and the build quality seems good as well (except that ridiculous "overcurrent" protection. If I do, rest assured that I will use a good T class fuse. Can I request a product review here? I recently discovered the Basen Greene DYI battery kit. It is 15 kWh for under $2k. I have seen some other of these large DYI kits reviewed but not this one and I like it because I can order the full kit including cells from them and the case has two massive positive and two negative terminals for easy paralleling.

[@natesoffroad]

Sounds like they are trying to make cranking Batteries out of these...

[@sharkey90697]

Would like to see u do a liTime 300amphr battery tear down THANK YOU VERY MUCH.

[@jeffreywolfe6313]

Were you able to check the over-temp protection?

[@wattcyclepower]

Thanks for your review, Will! We appreciate you bringing this to our attention. We want to be transparent about the labeling of our 300Ah mini. We use EVE LF280K-280Ah grade A cells (rated capacity 3.2V 280Ah, tested capacity 3.2V 310Ah). While it performs at a higher capacity, the correct labeling should be 280Ah based on the cell rating. We apologize for any confusion. We're offering affected customers a $50/each refund and a 2-year warranty extension, or a full refund if they prefer to return the battery. We're also developing a new 300Ah model. As the over-current protection, we will fix it to 250A-300A in the future products. We value your feedback and are working on a new 300Ah model.

[@JRP3]

Actually I don't understand why Will wants such a low current on such a large battery. That's about 1 C and LFP is capable of much higher.

[@spawn1086]

Wow ! Good to know that watt cycle watches and responds to the video, and that because of the testing a problem was discovered and the company addresses the issue! I look forward to additional 100AH testing on the newer models before my next purchase. Thank you Will and Watt cycle

[@kallesalmela4931]

Great to see your response, and correcting these issues. Build quality looks as good as the 100ah batteries, i was really happy to see that.

[@mattcruz5915]

Great job replying! Any chance you will make a mini 48v 300ah?

[@leevincent1639]

I placed an order for 3-300Ah batteries through Amazon on Jan 1st with anticipated delivery on Jan 16th. --Will these batteries have the new over current protection set to 250-300A? --How do I claim my refund? --Will your NEW 300Ah model be the same physical dimensions?

[@paydaypayday3506]

Long time watcher, first time poster. I got 2 of these for my RV as they do fit in the battery bay. I ordered them based on your review of the 100AH battery. One of them they sent was cracked and the top was separated. I contacted them via email with a couple of pictures of the damage and I got a reply the same day. They Offered 3 options, 1) replace it free of charge, 2) return and refund my money and send a free 50AH battery for my troubles, 3) I repair it with an additional 2 year warranty and they send a free 100AH battery. I chose to repair it and true to their word, I had a new battery at my door in less than a week. I am impressed with the customer support

[@mattwhite5669]

I ordered 2, and one was popped open, and they offered the same thing. I fixed it and they sent me a 100ah battery. I ordered 2 more and one was popped open, and the other the strap was broke, pulled it out of the box, and the case was popped open and broke.

[@gormanthomas8135]

Very helpful information. Thank you both.

[@joeu7167]

Same here. Took the option to repair and received 100ah battery

[@weseehowcommiegoogleis3770]

You got something, I got ZERO!

[@tsuehpsyde]

I bought the standard WattCycle per your recommendation for a great price on Ali and so far, it's been fantastic! With so many no-name brands, it's nice to see a few new brands popping up keeping companies like Eco-Worthy and LiTime honest.

[@richrock1548]

Hey Will, I have been a subscriber from the very beginning. I really appreciate all of your informative videos. I actually learned how to hook up a solar system thanks to you. I bought your book a couple years ago, and I'm so happy I did. It is filled with a wealth of knowledge. Thanks for everything buddy 👍

[@bigbear29d]

This is the kind of quality review I expect from you. Thank you for your service.

[@Supersurfer12]

I am watching this during a blackout in SoCal

[@P_RO_]

The fires be crazy- stay safe!

[@williammeek-h2o]

Be safe.

[@WillProwse]

@@Supersurfer12 yikes! Hope you're a safe distance away

[@rtsrts2317]

how far away are you? The wind was crazy here in Long Beach

[@travisminneapolis]

Weather blackout?

[@techthehome7167]

That ecoworthy 280ah battery is branded Gentai here in PH. The label is even the same. I tested it at 293ah of capacity. Can be purchased for around 21k php or about $360 USD.

[@robertkubrick3738]

Thanks for the useful factoid.

[@bigmangmc]

THIS MAN IS THE O.G. G.O.A.T. OF ALL THINGS SOLAR AND BATTERY POWER!

[@fvrrljr]

*photovoltaic / solar thermal technician here: I SECOND THAT threw my knowledge out the window. loved watching his humble beginnings to watch him what Will is today*

[@fvrrljr]

*Thank You Will*

[@freshdonkey1760]

🐐

[@YouSnoozeYouNooze]

Thank you for wearing protective goggles and doing such great reviews

[@jimfields9491]

Hopefully you are wearing your safety Crocs lol.

[@veganpotterthevegan]

​@@jimfields9491 do you put safety crocs over your daily wear regular crocs? Mine never come off

[@CoolBreeze640]

Great video! I received two of these batteries this morning, and I appreciate the warning about needing a fuse. I enjoyed seeing the teardown as well.

[@curioussand1339]

I already bought two of these as a result of the WattCycle review you did not that long ago, recommending the batteries. A bit disappointed about the false labeling. Also surprised that the overcurrent protection is not lower to remove the need for a fuse on each battery. I will be putting two in parallel, with a 400A T-Class fuse from LittleFuse on the combined output. Luckily I also bought some 400A MEGA fuses with fuse holders from Victron and I will be placing one on each battery based on your findings. Main cable is 4/0 rated at 440A @ 105 deg C.

[@MatthewByrne-h9x]

You should use mrbf fuses on the batteries. Some fuses fail shorted (rather than open) at super high currents that these batteries are capable of. I cant recall the rating name, but mega fuses are no good for that.

[@curioussand1339]

@@MatthewByrne-h9x The MRBF is the better battery fuse choice compared to a MEGA as it has an AIC rating of about 10.000 Amps compared to around 2000 Amps for the MEGA. But given a single 300Ah LiFePO4 has a maximum discharge rate of about 900 Amps, the 2000 Amps provided by a MEGA fuse should still be ok.

[@Bwanar1]

Sounds like this problem is more prevalent than is being let on. I got one of these batteries a couple weeks ago, that had a chunk out of it, crack down the side, and the cap was coming off. They tried to blame it on shipping, but the box didn't have a scratch or crease on it. Packing was great. They just aren't inspecting them very well, and obviously need to beef up the build. They wanted to send be some glue to fix it myself. HAH! And they would send me a smaller battery for the trouble. I was going to buy a second battery, but with these issues and your recent review; I don't thing I want to deal with this apparent quality of battery. Also glad you did the test and showed the shutoff didn't work. That's all I would need is for it to catch fire in the RV.

[@curioussand1339]

Renogy apparently is feeling the pressure of these cheap and compact 300Ah Mini's, they just launched their version recently. They Advertise 300Ah, could you also review one of those to check the capacity and overcurrent protection? The price is close to the price of WattCycle.

[@ensom]

great review, i have been looking at the Eco-Worthy 280 Ah 12V battery.. it's currently on sale on amazon for UNDER $400, which is a pretty amazing deal.. i would love to see you review it / tear it down to see your take on the build quality & test results!

[@doughanawalt7736]

They are $360.00 right now on ebay. I have two of them in my battery bank along with 4 various 100 ah batteries. Very satisfied. Also, there are a few reviews out there, I think Will may have done one himself. Take a look see.

[@Capt-John-T-Moore]

Thanks for reviewing this battery I watched your initial review of their 100ah battery and I am leaning using 2 of these 300ah batteries in my build. Knowing they might fix the issues you discovered. I may wait for an updated version or choose another brand to finish my build for an Rv application

[@clarkleakins879]

EXCELLENT REVIEW!!! THIS is what every product review should become. In depth testing, physical internal inspection to verify assembled contents. Vacuum, microwave, coffee pot, box fan, EVERYTHING needs a complete educated review.

[@West_Coast_Ganbaru]

Once again, saving me money and looking good doing it. Keep it up, bud

[@tracymeskel2839]

Thank you Will! I was just about ready to suggest his battery to some friend

[@ravenflare8076]

Almost bought the wattcycle but my gut told me to go with the li-time, just for the peace of mind of a more established company. had seen the reviews of these coming with the case falling apart and got spooked. Amazing to see the batteries get cheaper, hope tarrifs dont affect prices too much

[@my_channel_44]

I've been impressed with the thoughtfulness in the LiTime packaging and product presentation.

[@Gastinger-g6js33]

I have litime batteries in my current RV and I love their batteries, I think they are a great value for the money!

[@hermj]

Always amazing information, Will. Thank you!

[@sbrownproductions]

I bought one recently based on your review of the 100ah - paid $476.99 - so even as a 280ah, if it has good build quality and working low-temp I am happy with it. I put a MRBF fuse on every + terminal no matter what the battery has.... just seems like good sense... never trust software ;-)

[@john_in_phoenix]

Yes, I have been using those fuses as well.

[@condoonsixthavenue8060]

What size fuse ?

[@sbrownproductions]

@ My loads aren’t crazy, so I do a 200amp fuse. If I were running inverters or larger loads I’d do a 250a fuse to allow a little burst

[@john_in_phoenix]

@@condoonsixthavenue8060 You size the fuse for the wire you are protecting. I use 200 amp fuses for 4 gauge wire at 24v (i.e. 160 amp). Hard to find anything between 150 amp and 200 amp. It's really to protect against a dead short. I have a 3000va Victron inverter and 4 batteries (each has a fuse).

[@Bitathisandthat]

Love the way you open the batterys at the end as i always like to see wots inside. Cheers for doing that.

[@boredbeingbored676]

thankyou for disassembling/fact checking all these batteries !!

[@arminius301]

On Black Friday I bought four Will Prowse-recommended Siekon 100ah for a total of around $610 including tax. So that's almost twice the capacity than this 280ah Wattcycle. The prices for these are ludicrous. I remember building a CALB DIY 100ah battery 4 years ago for over $750 with the fixings. It makes more and more sense to become energy independent, thanks to people like Will Prowse!

[@jacktally5166]

I bought it and will be fitting it easily in my Airstream Basecamp 20X when it get back from the shop this Saturday. For “shore” power I have a Bluetti AC200Max. I’m all set now for four season outings.

[@seanmcclain94]

Great review, keeping the standard alive in solar. Thanks

[@markhunter7444]

It’s been so amazing watching you handle this modest sized vessel. I also think it’s a great decision if it helps realize your future ambitious dreams. I’m hoping for a sub 40 foot classic plastic full keeler!

[@RobRush]

those 100ah wattcycle mini batteries look so good. i feel like getting two of those wired in parallel would be great for a small overlanding set up

[@williammeek-h2o]

I am considering using them to replace the lead acid batteries in a Ryobi electric riding mower. Yes, lots of upgrades for that project.

[@EricStott]

How often do posts from your channel = a call, or some communication from the manufacturer saying that they will update and fix their 'mistake'?

[@WillProwse]

Almost every video and every mistake I catch 😂 then they send a ten paragraph apology thing. I don't listen to them, I wait till they fix it

[@Jarmezrocks]

@@WillProwse does it seem at all silly that they know you are going to pull it apart and catch them out anyway?

[@traveling.down.the.road56]

Perfect timing for this video. I just bought a second pair of these, for a total of 4, 300AH WattCycle batteries, to make my 48V battery bank to run my EG4 3000 watt all-in-one inverter/charge controller. I just logged online to check Will's older DIY power station cart that he built with the EG4 3000 watt inverter, to see what other parts I need, and I found this video instead. If you could give me a quick list of additional parts I need and a diagram to show what to put where, I'd really appreciate it. I just got done charging my 4 batteries with a Victron 20 amp, 12 volt battery charger, to top them all off before connecting them in series for my 48 volt battery bank. One of my 4 batteries seemed to be low after the charging, so I put it on the Victron charger again, and it went from 13.35 up to 14.1 volts. The other three batteries all finished the first charge cycle at between 13.61 and 13.68 volts. It is a bit disappointing that these batteries aren't true 300AH batteries, but as you said, they are still a great value, and appear to be built well, so I'm not too upset about it.

[@jdtravelers1361]

They got me... I bought based on the 100AH battery reviews. I should have stuck with building my own like I have in the past. That is what I get for being lazy. BTW..Love your content.

[@herb7877]

EXCELLENT review & timing. I almost ordered 2 of these at Christmas time but decided to wait. Can't believe they would even attempt to have that much current allowed to be drawn. I see lawsuits in the future if any of these cause a big fire. Li time had the 280's for a really good price as well. Since I already had 2 of them I decided to oder them instead, but waited too long and they ran out of stock. now looking at Chins again.

[@robertslatten556]

I bought one because of the footprint, (it fits in my current battery box) nothing else compares!

[@maryt8571]

Thank u for all your test time and great info on solar equipment.i always look forward to your new videos.please keep up great work

[@SelkeySmooth]

Glad I bought x3 of the 100A WattCycles when you recommended them instead of going with one of these that you hadn’t torn down yet!

[@effortless_choice]

Hope you’re having a great new year - Will. 👍😎🇺🇸

[@williamfosterXD]

Thank you for the review, I ordered one of these based on your review of their smaller battery. A little disappointed it’s only 280 but still seems like the best deal for my particular use case.

[@blenderbenderguy]

Will's keeping them honest and Wattcycle's doing the right thing and doing it quickly. Could use lots of Will clones around various industries. I'd ordered some 100ah batteries and one was DOA. Wattcycle sent me a replacement and no need to return bad battery after an exchange of pics showing multimeter readings. Hat's off to Will and Wattcycle!

[@NatureZone101]

Thanks for the info. When you say we can balance the cells, how do we do that?

[@cryptojlg630]

A video on 48v server rack vs 12v x4 in series would be great with some of these 280ah batteries. It could illustrate pros and cons to sticking with nominal system voltage vs 12v in series, wiring costs, cell imbalance, and also if a chargeverter works any better charging these back up vs generator through AIO.

[@my_channel_44]

It's not right to directly compare a drop-in Group size battery with a server rack battery. One gives comms, standard protocols, one does not.

[@cryptojlg630]

@ For sure. I think it’s a topic worthy of a video explaining it to everyone, newcomers especially who are just typing in batteries on Amazon and thinking things will go super smoothly, especially with prices quite competitive. Like if there was a similarly sized 4S system to equal inverters and panels, what can buyers expect fully? And ways to combat any issues? Ex. How does each individual bms react to charging through an all in one on generator, at various loads? Does a 5 kw generator running near full load react about the same as a 15kw at 33%? Or does it throw the sine wave off, and how does bms of both kinds react to this? A bit on chargeverters in those situations with each configuration too. I feel like it could be of interest, there’s plenty that have been in a system down state after a week of no sun mid winter. In Canada. Or, whatever it’s called now. 😂

[@alanbutterworth4219]

It's funny to think that Will is now a fulltime 'R&D' quality inspector, who companies supply with new products to determine what should have been ironed out in their own design stage. Maybe the Chinglish is lost in translation.

[@MaxGolden]

I have been waiting to buy 2-3 of these until you tested them. Now I know what I am getting 😊

[@brushbum7508]

Good Afternoon Will ! THANK YOU. TAKE CARE..

[@AIM54A]

Love to see a video of you testing all the commonly available high current fuses you might find on Amazon for a battery like this.

[@FelixgreenYT]

I learned to wire solar from you during the pandemic and its crazy to see how small and cheap the batteries have gotten. Makes me feel crazy with the massive 200ah one I bought back when it was competing with battle borns at $900 for 100 ah

[@nmartin5551]

I feel you. I have a gigantic 200ah lithium battery, without low temp protection. Paid close to $700 for it. Oh well!

[@emilecrotteau7312]

🇨🇦 THANK YOU FOR THE CONTINUING USEFULL INFORMATION AND SAFTY CONCERNS

[@louisstanwu]

Very nice breakdown, thanks.

[@michaelchannon2644]

Good to see Wattcycle running an apology on their FB site and on the landing page of their website. "Mr Will" is even name checked!

[@curioussand1339]

Would be interesting if you would dare running the battery for longer at high load to see if the overheating protection works? Or do you need beefier cables?

[@charliegordon5085]

423 views but only 53 likes? Let’s support this guy, his video’s are very informative and uses his own money 🇨🇦

[@sylvainpelletier9667]

I agree with you ! When you realize from where he began (the street) and now how notorious he is. We should all be aware of the benefits he gave us ! This guy is a gold mine for us ! So thanks greatfully for his incredible job. He's the last perfect incarnation of the american dream 👍 Cheers from France 🇲🇫 (our president is out french nightmare...)

[@amywas1]

The second 100Ah battery they sent me (for free) also had the inner assembly moving slightly inside the outer shell. I have some doubts about using it in a boat where it will slide back and forth many hundreds of times a day in rough weather. That said two 100Ah batteries for $ 243 (Australian dollars) is a steal.

[@my_channel_44]

Nothing some black expanding foam won't fix.

[@amsoiladam]

I’m currently still making my video on this same exact battery and I’ve been using it as a portable power station with a 1500 W inverter. I used it to run my circular saw while I built a deck. So far I’ve been very pleased with the performance of this Battery.

[@WillProwse]

Be sure to add a fuse then

[@chuckzechman1497]

Just bought a pair of their 100 ah mini bluetooth batteries. So far- pretty impressed.

[@TheMalibuHobo]

Yeah i went out & bought 2 of the 300ah mini after watching your earlier review of the WC 100ah, when it arrived one of them had a major damaged shipping box, look like it was droped. I started the return process, and they wanted me to pay the shipping fees for 50lb battery, all the way back to China, I thought that ain't right. Thanks for the great review, I need to check the lids to see if they're secure.

[@babytater33]

Looking forward to your Eco-worthy review. It's the cheapest battery per kwh I've been able to find

[@TheColinputer]

Companies need to just be honest! Like for a 280AH 3584WH battery this is still awesome value. Also im glad to see companies are making more compact batteries that are not just full of air. Like i understand at first it was the done thing because so many mounts and setups were designed to handle the 100AH 200AH 300AH etc 12v AGM sizes. But those days are long gone.

[@garyberndt5474]

love to listen to your videos, good brain

[@pchris6662]

Nice review. I can forgive a little mislabeling if the company stands behind their screwups and offers free battery compensation for those cases where they screwed up. These days, thats rare. Good spot on the overcurrent, a quick change to the BMS and a new label and that’s still a very good deal.

[@ChrisB-u4n]

Just think how many dollars Will has saved us by testing these products, with honest and informative reviews. A lot of companies are card carrying Dodgey Brother Members and Will here calls them out..We wouldn't know squat otherwise....3 Cheers for Will 🙂

[@Gary-wh7ce]

Very interesting video and I am SO glad I did not purchase watt cycle. Seems like every off grid channel was being sent watt cycle with all the hype. But you are doing a GREAT service exposing their fraud since false advertising is a crime in my state. Trust once lost is often very expensive to ever regain it so maybe these battery companies should come clean and have a loyal customer base that can build quality and long term success, rather than earning a quick and soiled yuan.

[@carlphinney4026]

I bought two of them on Black Friday. One came with a loose cover. Wattcycle extended the full replacement warranty( not prorated) to 9 years from 7, and refunded me $150 as I didn’t want the free 100ah battery they offered. I simply snapped the cover back in place. All in all up I paid $800 total for both. A good deal imho even if not a full 300ah capacity.

[@ravenflare8076]

Have you tested the li-time 300AH? and compare to these, ive seen li-time go to $520 which is pretty decent

[@tomvassie]

Interesting Video Will, thanks. Have you done a review of the Eco Worthy 280ah yet? I’d be interested to know your thoughts on it? Thanks. Tom

[@DavidGilling]

WattCycle's KZbin account commented the following about the battery protection on the 200Ah battery (under a sponsored review video here on KZbin): Thank you for testing our product! But it's worth mentioning that for the 200Ah battery we set the overcurrent protection threshold to 950A, this is to be able to use it as a starter battery instead of a lead-acid battery! I hope you can try to re-test our product! Our products really do have overcurrent protection!😭😭😭😭

[@AnotherDayInTheWoods]

Another great video. Keep calling em out, Will....

[@Krunch2020]

Wow! Thanks Will!! I have been looking at these.

[@havfungetlotsdone1112]

Per your question... I prefer the build of the Epoch 12v 460 even with the steep price tag. Quality pays off in the long run.

[@MikeGentry]

At that amp capacity this one might make a good truck starter battery

[@my_channel_44]

Won't work in freezing temps. Could just cut-off while driving, which will send the electronics burning up. At least put a supercap starter pack in parallel.

[@MikeGentry]

@@my_channel_44 I doubt that. It may not charge in the freezing temps but it'll still discharge.

[@human6766]

Awesome stuff man. Could you review this unit ECO-WORTHY 48V 280Ah LiFePO4 Lithium Battery with Bluetooth ? Thank you

[@louwrentius]

You need to always fuse them and never solely rely on the BMS to protect against shorts or high currents. 🌷

[@larrystrayer8336]

I like your real reviews thanks.

[@einyv]

Amazing review, they are going to be embarrassed especially after they are using your other video to promote the 100AH. I hope they fix the issues.

[@lmcatech]

I bought 3 of these batteries for my 36v trolling motor. Charged and tested their capacity and got 302Ah out of each battery down to 10 volts.

[@lua-nya]

I have a 16s bank of EVE LF280. When i saw your tested capacity, i thought those were indeed LF280. After more than 120 cycles and a year, the cells in my bank still seem to do 300Ah. But I charge them below 0.3C and discharge them below 0.5C, so...

[@Techridr]

I love the found hair analysis. The hair is of a boy, not a girl. Based on this hair sample he's a active boy from foothills of Guangdong who lives on fish and dumplings

[@WillProwse]

🤣

[@nullsmack]

I can't find the video about the eco-worthy battery, can you tell me which one it is?

[@Token_Civilian]

Another great review. Thanks.

[@dirtroadsailing6418]

I saw these on eBay back in the fall when they were having some sort of pre black Friday sale. Somehow I ended up on a link to 4 batteries that were shown with a percent off price and also showed an additional discount making the total less than $400 each so I placed an order. The next day they sent me a message saying they had discovered a manufacturing defect in all of these batteries and would have to cancel the order, yeah right. They said they would have some back in stock in a couple of months and I could get the discounted price then but didn't say how to do it. Basically, they made a mistake and lied about a manufacturing defect instead of just being honest. I'd rather pay a few bucks more for a more reputable company than wonder what kind of corners they cut.

[@Ray_of_Light62]

In some high reliability applications, I prefer to use Marine Lead-Acid batteries. Yes, you get half capacity for the same size when compared to LiFePO4 batteries, but there is no quirky BMS boards in the middle, and the characteristic in high temperature environment is almost a legend. The carbon in the electrode plates has made sulfation of Pb/H2SO4 batteries (at low charge levels) a problem of the past...

[@DimebagDarrenLowe]

This one sounds perfect for starting cars

[@my_channel_44]

Use a supercap in parallel.

[@androidemulator6952]

"We're gonna test that..!! " - Project Farm ;)

[@b97209]

Bought 8 for 4S2P. Thanks for testing the high current cut off. Wow. That would have been spectacular. 4 had lids partially or fully off. Support was fine. I bet they get some air time with FedEx. I doubt they are rated as IP6? anymore.

[@knight3131]

I was thinking of getting one, but now I will wait for the updated version to see if it is good.

[@ianmburke]

I need you to make a parody of the Bill Nye intro that chats "Will, Will, Will, solar rules"

[@viyusavery248]

Been waiting on this

[@yantruocmot]

Will, thank you for reviewing this battery! I have been waiting on someone to test it. You mentioned that it should have a fuse on each battery if you use these. I assume you would suggest a MRBF type fuse for that? Also what size would you suggest per battery? Say there were two batteries and used for a 3000w inverter. Thanks, keep up the great reviews!

[@werner.x]

4:50 I do use these batteries with inverters, occasionally for welding too, so they need to have a lot of surge capacity. The chinese manufacturer of my cells claims 1C constant flow and 2C surge - so, no, i would not want this kind of batteries fused at 250 amps.

[@matthewperlman3356]

Will as for as the overcurrent protection, it depends on the intended purpose of the battery. If the batteries are 3C rated, then 800 or so amps is perfectly fine. If you're using it for a solar application, then like you mentioned, the fuse is definitely a good idea. But, if the battery is used for a starting application in a vehicle, then the high amperage is needed to turn the starter. A 200 amp short term limit in many cases, is just simply not enough.

[@traveling.down.the.road56]

These aren't warranted for use as a starter battery for a combustion engine. Says so right in the paperwork that comes with them. I still think they are a good value for the money spent and don't regret my purchase of four of them, but they should be labeled and advertised properly as 280AH batteries.

[@matthewperlman3356]

@traveling.down.the.road56 Thanks for the update, I didn't realize that about the warranty. In that case, then Will was correct. As far as the 280-amp hours being labeled as 300, I absolutely agree that this is false advertising. It's issues like this that I actually have quite a pet peeve about regarding Chinese electronics, which are often misrated.

[@traveling.down.the.road56]

@ Yeah, I’m very cautious with buying any Chinese products and try to avoid it whenever possible.

[@danmccoy6164]

Hey Will. When are you going to get a grid boss. Was going to get one to go with the 2 18kpvs. And 6 eg4 indoor wall mount batteries. Wondering if it would really simplify my instal. Thanks for all you do for us diy guys.

[@bigshowradio_550]

DC House. Would like to see you review this battery if possible. I purchased the 52 volt a100ah for my stock golf cart. I've seen a couple of reviews but nothing in depth like you do.

[@YourOutDoor]

Had one of these in my shopping cart now not sure. What size fuse would be good? Great review

[@martinmiller7623]

Gee whiz truth in advertising👀😱Funny if it wasn’t so simple thank you Will keep them honest good deals aren’t lies. Thanks again sir.👀😂😊

[@travelingamerica2567]

I bought two of these on a Black Friday sale at $499 each and after watching your video i feel like i got ripped off..........a competitor had a 280 for a hundred less.

[@my_channel_44]

Black Friday sales are scams.

[@belkenator]

I got 2 of the NewtiPower 300ah 'small sized' with the built-in voltmeter/capacity estimator for $460/ea off Amazon a month ago. They'll send you a free cheapo charger when you register each one. I wonder if they are packin' 280ah in them too...

[@RockhollowCNCServices]

Any downside to mini batteries? In general. Not just these but mini in general.

[@williammeek-h2o]

No. there has been a general improvement in cell energy density and that is reflected in these new mini batteries. Otherwise, basically the same.

[@svpearlsailacapegeorgesail4758]

I ordered a couple of the 24 volt watt cycle… still waiting to receive them. They told me one week wait, 3 weeks went by I emailed to cancel. Then they said at the end of January they would ship

[@hermangerman3964]

Great video, and very timely as I just bought two of those for my boat. Seems a good deal despite the shortcomings you revealed. Follow up question: You recommend adding a fuse on each battery. I'm planning a set up where I lead both batteries to common poles within 7" and then install a 225 Amp Class T fuse for the combined discharge. Do you still think that each battery should get a fuse? ABYC seems on the fence on this, and some people seem to think that separate fuses may cause new problems. Would greatly appreciate your thoughts.

[@matthewjason5330]

Hey I love this channel. What do you use for a capacity test? Thanks