$329 Weize 12V LiFePO4: 18 Month Update! Should you buy it?

[@WillProwse]

You can buy a Weize Battery here (affiliate link): www.weizeus.com/collections/weize-lifepo4-battery-lithium-phosphate-li-fe-po4-cells?ref=WILLPROWSE 12V LiFePO4 that I recommend you buy instead: www.mobile-solarpower.com/lithium-batteries.html *Does off-grid solar confuse you?* Check out my DIY friendly website for solar system packages and 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 best-selling, beginner-friendly 12V off-grid solar book (affiliate link): amzn.to/2Aj4dX4 If DIY is not for you, but you love solar and need an offgrid system, check out EnergyPal! They will price out a system and get your house offgrid: energypal.com/diysolar/ *My Solar Equipment Recommendations (Constantly updated! Check here first):* 12V/48V Lithium Batteries: www.mobile-solarpower.com/solar-batteries.html Solar System Component Directory: www.mobile-solarpower.com/solarcomponents.html Complete 48V System Blueprint: www.mobile-solarpower.com/48v-complete-system-blueprint.html Plug-N-Play Systems: www.mobile-solarpower.com/full-size-systems.html Complete 48V System Kits: www.mobile-solarpower.com/complete-48v-solar-kits.html DIY Friendly Air Conditioner/ Heat Pumps: www.mobile-solarpower.com/solar-friendly-air-conditioners.html *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: currentconnected.com/?ref=wp *Ecoflow Delta* My favorite plug-n-play solar generator: us.ecoflow.com/?aff=7 *AmpereTime* Cheapest 12V batteries around: amperetime.com/products/ampere-time-12v-100ah-lithium-lifepo4-battery?ref=h-cvbzfahsek *Renogy* A classic 12V solar store that has been around for ages! 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

[@woodchippers_WestWingDimeBag]

for a few dollars more they have a heated battery option

[@theindependentlifestyle]

American Engineers - Good ideas, Good execution. Chinese Engineers - Good ideas, bad executions. American products - Good warranties Chinese products - Bad warranties. That is the logic now a days. Cheap doesn't mean good quality. You cannot have the best of both worlds.

[@woodchippers_WestWingDimeBag]

@@theindependentlifestyle a 48v 100ah EG4 is almost the same price as a single battle born cheap doesn't mean junk

[@theindependentlifestyle]

@@woodchippers_WestWingDimeBag It depends how you define junk...Quality control man. It is all about the quality control. What we are spending our money is on quality control. This is what I learn when I work as an apprentice in a machine shop. It is all about the quality control. Sometimes cheap products have none of them.

[@KarlKarsnark]

Will, is it possible to run a well water pump(220V) for short periods of time off of an all-electric generator of some kind that can then be used for other gizmos the rest of the time, or are dedicated "solar well pumps" a better option. I can get electric from the street, but would like to try an alternative, at least for a bit. Thanks. Cheers.

[@Albert_206]

What’s truly great is that you come back at a particular item well over a year.

[@alwaysmoody800]

You should promote your solar book . It has helped me immensely . I have purchased copies for people that wanted to get started and were intimidated . Thank you for all your time and energy to help us .

[@alwaysmoody800]

@@my_channel_44 Thank you for the tip .

[@gsp49]

You just helped me realize why, when showing off my LiFePO4 collection, and bragging to others about why they are the best thing since microwave ovens,.....they don't get it.

[@crmnlyinsane]

Same here. Great resource for beginners!!

[@toronado455]

Maybe Will could do an updated edition of the book.

[@MarkWilsonRN]

@@my_channel_44 I wasn’t even aware he had a website. Gotta get on that

[@M22Research]

[edit] Why would anyone buy these $300 batteries? Very simple - people buy the “small” batteries because they do not need 400Ah of capacity! If you only need 100-200Ah of capacity and you don’t have an unlimited budget, $300-600 hurts a lot less than $1500! Your older, original followers often have smaller off-grid system needs…. vs your channel’s current whole house systems focus. Thanks for coming back to small system earth with this update!

[@neutralobservation9418]

You are correct. My system runs everything here, and I have less than $1500 in the entire system.

[@ropeburn6684]

Prices keep going down too. 12V 100Ah batteries are now available under 250 moneys.

[@americancastles]

I love the fact you are not promoting any single brand out here! I am a loyal subscriber because of your honesty and dedication to give the best information to your subscribers. the internet nowadays is full of crooks and sellers who get paid to promote some crappy stuff and pay for reviews instead of improving the quality of their product. I applaud you for being an honorable KZbinr and not selling out like the rest.

[@tracymeskel2839]

We bought the Ampere Time, 2, 200ah. We bought them after your review. Knowing that the batteries would be stored indoors, and temp controlled. It’s been over 18 months, and I am loving them! We have never gone this long boondocking, without the generator. We are on day 45 without the use of the generator.

[@WillProwse]

Awesome!!

[@izzyizzm8761]

what is your resting voltage? I have the same setup,I get up to 13.8 doing the day and rests at 13.12?

[@tracymeskel2839]

@@izzyizzm8761 I think I’m resting at 13.5. I have a Victron system supporting the batteries. A smart shunt, a 100/50 charge controller, and 820w of solar. We have been in the desert in Arizona, then moved up here to Lake Mead. I only went down to 12.06, 5 days ago, when we had clouds all day. I thought I would not have any battery power when I woke up. I didn’t even sleep with my cpap, I was afraid we would run out of power. But the next day, the was shinning. So I pulled out the 140w portable solar panel, shut off the 110v fridge, and shut off the inverter, for the day. We made up to 80% of power, and the day after, it topped us off. Since then, it’s been at float charge by 11am

[@Stevenowski]

@@tracymeskel2839 For your health, don't sleep with out using your cpap😱. Get a backup. They are inexpensive enough. 🤗

[@sebastianlehmann3698]

Hi Will, this type of battery are still the best option for small boats and sailboat, where space is tight and builders create spaces only for this size of battery. So keep bringing them to your channel. It is always a good reference to have them tested and known what the community think about them.

[@MrGordy61]

Also good for small out buildings like chicken coops, where you run some timers, LED lights, electric doors...

[@peterclarkson7317]

​@@user-ty8jl3kw8xNo, the chemistry used in these types of batteries is different and inherently safe.

[@MrGordy61]

@2 B Tesla??? Dude you have been watching FAKE news. Now if you had said Chevy you'd be factual. Google "Tesla over a cliff", briefly a Tesla in Comyfornia was driven off a cliff (by a suicidal man) and crashed 250 feet down on the rock below. The family of 4 survived and the car did NOT catch fire!!!!

[@DavidJSamko]

Some of the reasons for buying the smaller 100 ah battery are for physical handling capability of the assembler. I’m very limited in the amount of weight I’m allowed to lift due to a spinal injury. So I’m looking to keep individual component weight down. Thus for people with limited physical ability and financial resources these tend to make sense.

[@zenthor13]

Agreed - the server rack would be ideal but too heavy - maybe make a wheeled server rack for domestic with ship-to-shore power connections?

[@NullStaticVoid]

Exactly. I also could not fit larger batteries in my short wheel base van.

[@dtm7909]

Thank-you for reviewing for us small people . Some of us have very small systems and I’m glad you haven’t forgotten about us .

[@richardwright3956]

I have 2 of these batteries in my Tiny camper and they work great. By the way I found mine on sale for $250 each. Great deal and I wish I had purchased 2 more.

[@macmcleod1188]

Seeing follow up on stuff like this is helpful. And I liked that you checked if it was the same inside!!!

[@kassandrakimbrell2504]

After your review of Zoom Batteries (now Redodo) a year ago, I purchased eight 100amh and five 200amh for my 50ft long keystone 5th wheel with 6200watt HQST solar panels on the roof...and thus far no problems :) Im running several Freedom X 3000 inverters, and alot of EPEVER controllers (again after your reviews). My system is sectioned into 3 systems (living/main, kitchen, and bedroom. I spent more money going this way, but any part of my system can go down, and Im still powered up fine! I run my dometic ac unit all summer and a large fridge and microwave :) Ive had several friends with alot of long term issues with Victron stuff, so Im glad in the end I went with the brands I did. Thank you for your product reviews and helping me make those choices! Love to hear more about heating options using solar!!!

[@IncognitaLabs]

A prepper who puts a small system together might reason that four 100ah batteries is a safer bet since if one fails there are three good ones left.. whereas with one large rack mount a simple component might fail and take out the entire battery bank. ditto for multiple 100 watt solar panels instead of a single 360w panel.. a few small charge controllers instead of a single large one also might be a good choice... a video showing the benefit of such redundancy would be nice.

[@WillProwse]

I would rather have higher quality components and a spare BMS.

[@TheRamorton2002]

I have 3 -200ah batteries in my RV for a couple of months and are working great. Low temp has worked correctly stopping charging when below 32 degrees.

[@Mikesroadtrip-ec5kp]

I bought 2 100ah over a year ago when you put them on your channel. So far no problem. Love them.

[@RimdarRanch]

I have ( 4 ) Ampertime 100Ah Batteries ( THANKS to you Will ) Working on 2 years now with NO issues.

[@kdll405]

I picked these up after watching your video last year, I used 3 of them in parallel for my camper solar/upgrade build - so far it's been fabulous, 300ah paired with 600w of solar is keeping things charged, and lets me run the Starlink the entire time we're out, which means working remote is stellar. Thanks Will! Your vids are super helpful and are great info that's easy to digest

[@rickssmokehouse4211]

Ty Will, I’ve grown to trust you in all things solar my friend. Ty for your time.

[@sspyder181]

I built a 12v truck jib crane with the 36ah version of this battery. Im in pa and we went through very cold winter and guess what... its still working great. Used a powerwerx 50v / 14.6v mppt with a 36w panel and dang its great. 1500lbs pull power baby. Super cheap

[@michaelparks3106]

I bought Chins batteries for my last RV (your review was helpful) but had to rig my own low temp protection circuit. For my new RV I'm getting the Weize 300Ah model. I looked at the server rack battery, but it was 33% more power for 50% more in price, so for me it wasn't the best solution. Keep up the good work, your reviews are always enlightening and entertaining.

[@cryptoanomalous7906]

I am a full-time 6month a year. I ordered 2 from Amazon about 60 days ago and installed immediately. I am happy so far.

[@Mike-xs6ds]

Thank you for still reviewing the "smaller" stuff. Most of my use cases are portable operations, so taking anywhere form 100 to 200 watts of solar panels and a single 12 volt battery (20AH to 100Ah) out in a field and have it run for 12 to 24 hours.

[@steveking8548]

If these are suitable for marine use, they'll be purchased one at a time. Just a reminder that everyone doesn't need 6 or 8 batteries at a time. Thank you for your world's best reviews!!!

[@badactor3440]

Loving my Chins, 12V, 520AH bank. Cycling flawlessly for almost a year now. Using a continuous, solid copper busbar across the terminals instead of cables

[@northeastslingshot1664]

I can't afford the risk with completely different system inside. You are so valuable Will. 🙏

[@vinniec5286]

I appreciate you revisiting this battery. IN the last 18 months I purchased 3 Chins 12v 100Ah batteries based on yours and others' reviews. I understand that they changed their cells as well. Some have pouch cells now. I would love to get an SOK but the price point is a little high for me.

[@mgkleym]

The main advantages of the 100 amp hour batteries is current output for smaller systems and flexibility of where you can install them in a confined space like a boat or rv. If you aren't trying to run an air conditioner 200 to 300 amp hours is plenty of most rv and boat applications. With the 100 amp per battery you can still have a 2 or 3kw inventor and run loads like a microwave or induction hot plate. IMO the ideal for small systems is the 200 amp hour 200 amp bms from ampere time. Same current output as the 100 ah batteries with half the interbattery wiring and cheaper than even the budget eg4 server rack.

[@berthaduniverse]

Thanks Will, these re-reviews are hopefully what keeps the manufacturers honest. At the very least, it keeps us in the know!

[@amsoiladam]

Last year I upgraded my OffGrid, RV system, and I used the Chins 300 amphr smart batteries. I put two of them in parallel. So far they’ve been working fantastic.

[@xsterawesome]

As an electrical engineer, it is standard procedure to have at least three manufacturers for every major component in your bill of materials. This practice goes on in everything from your TV to your car. An Infamous example I can remember is when GM had a manufacturer sell them a boatload of defective stepper motors for their instrument clusters, and they mixed them in with all the stepper motors from all the other suppliers, next thing you know everyone's gauges are randomly failing prematurely, while the majority go to 300,000 miles without an issue. Another well-known example is Apple not using the same speed SSDs or processors in various devices leading to "identical" devices performing differently on benchmarks. That being said, the important thing here is the company determines the minimum acceptable standard, the minimum acceptable performance, for Apple I'd imagine it's minimum requirements are still better than some fly-by-night Chinese company, even if they're manufactured in a factored across the street from the Apple products.

[@danrascal4045]

People use multiple 100Ah batteries because they start small and find out need to expand for the system to work as expected - like me, for example :) I ended up having 4 100Ah batteries and one 200Ah in a 12V system. All Redodo by the way. Nice video!

[@toronado455]

Is weight also an issue? Perhaps people are buying the 100 amp hour batteries because they are lighter?

[@danrascal4045]

@@toronado455 Yes, especially for RVs.

[@RGP_WA]

Thanks Will for thr review. I recently bought 2 - 200 ah of a competitors cheap batteries. My reasoning to buy these instead of a server rack battery was size and fitment form my travel trailer. I needed 12volts and had no place for the server rack firm factor.

[@JT-lq4yd]

I bought this battery back when you first reviewed it, still works well. I bought 2 of the Ampere Time and liked them so I bought another 2. Reason I went with 4 12v is that I can reconfigure my set up in any voltage from 12 to 48 volts. If one of the batteries fails as a 12v system I only lose 100ah, for the other voltages it is a bit awkward to make it work but I will not be without any power as if it was a single 48v battery.

[@fishhuntadventure]

I follow that logic. Plus you can ‘scale up’ over time for budgetary reasons. Or just add one if a situation change needs a bit more amp hours without dropping $1500. Or for the two 140Ah Btrpower cheapos I bought for $395ea- I didn’t want to commit to more than 1 battery at first in case the brand was a dud. I tried to buy a third but they are not listing a 12V 140Ah any longer which is annoying. I get what you’re saying.

[@JT-lq4yd]

@@fishhuntadventure How are you liking that 140ah batteries? Have you tested them to see if the capacity is not overstated?

[@MrJeffDemme]

I bought one of these 10/2022 for $299. It failed in 5/2024. I used it for trolling motor. It sat for a few months and died. It would not restart. I tried all the jumper techniques to no avail. Weize tech support responded to emails and worked me through troubleshooting. It was a bit of a process, but they finally agreed that it is dead. They sent me a new battery and I still have the old. I wonder if I can repair and will cut the top off one of these days. Since then I have upgraded trolling motor and battery to 24 volt. I bought a Repower Flow 24 volt 100 Ahr battery in a suitcase. So far it is an awesome product! I am no "Will Prouse", but I highly recommend!

[@cerealkillerjigs]

did you find any issues with the battery when it sat outside in the heat . i bought 3 weize and about ready to install. to big to keep in a garage but i keep it tarped.

[@MrJeffDemme]

@@cerealkillerjigs The battery that failed was kept in my garage or inside our 44' boat. Both places are unconditioned but not super hot. Still don't know why it failed.

[@DagonNaxos]

I got 2 200Ah Ampre Time Plus batteries. They're awesome and I love them! I'm a ham radio guy and last year for field day we ran 2 100W ham radios, 2 laptops, a 500W inverter for charging, 2 box fans, lights, you name it and we only really used 1 200Ah down to about 30%. This year, we're doing it again with both batteries and even more gear!

[@master_X_72]

I bought three Weize 100A batteries from a vendor on eBay. One wouldn't charge properly, it wouldn't come up above 12V the charger would time out and after resting overnight it would show 9V . The vendor refunded me for one and didn't want the bad one back. I opened the case and found water damage inside. The B.M.S. had corrosion and under the heatsink the thermal paste was wet and runny. I bought another B.M.S. for $60 and soldered it in and repaired it.

[@fishwhistle100]

Which bms did you use and how did you reseal battery?

[@master_X_72]

@@fishwhistle100 ebay seller for the bms and a harbor freight plastic welder!

[@master_X_72]

@@fishwhistle100 hiqbattery was the name of the seller and the bms has the low temp protection built-in.

[@brianluttman7034]

I bought 2 of these for my Class A to replace the AGMs that were killed by the wrong setting for low voltage cutoff on the inverter from the factory. So far they are working great.

[@my_channel_44]

Isn't it nice that if you get that wrong on LFPo, they don't care - instead of dying permanently.

[@Metalheaddoc]

I have two of these Weize batteries and they are working fine in my small homemade system. I don’t cycle them much as I keep them charged for a backup power supply. I have not had any issues with them.

[@vhfgamer]

If you buy these with the intention of making a 48 volt system, then you are correct it makes no sense. Just get something like the EG4 (which I have done). But if you're building a small 12 volt system, then these things are fine IMO.

[@DRobertsonKenora]

Hey Will, I bought one of these batteries about 6 months ago for my RV based on your first Weize video. I liked the quailty of the battery, the low temp protection and the great price. Battery has been good. I needed to replace my golf cart batteries so decided the Weize 100ah 12V would be a good choice. I bought three of them and run them in series for 36V. They do work fine but they do have an issue with the BMS shutting down current flow if I demand full output from the cart. It's rare that it happens so I'll live with it. Now that I saw you second video I'm second guessing my choice. Thanks for all the great info and videos.

[@cc136vanlife]

We bought 2 of these off of Amazon after watching your previous videos. Your previous videos left a positive impression on us and we passed on the Chins. It seems you have done a 180 on these. We Have a small DIY Van Build we don't need 400 AH. Keeping fingers crossed. Great channel, very informative.

[@FlyNineVictor]

I bought one a little over a year ago on your recommendation. I'm using it in a van. It is kept charged using two 100 watt solar panels through a 20 amp Rich Solar charge controller. So far I have had no problems with it. It runs a 12v refrigerator, interior lights, a 1500w inverter, a water pump and charging ports and 12v accessories.

[@rtpman1953]

I bought two of these batteries shortly after Will's review. Both work great and being used.

[@darecofreedomfarm3]

We bought a couple of Ampertime 24v 100 amp hour batteries about 18 months ago after watching your review. I don’t follow rules to well so I have 4 Battleborn 12v 100 amp hour wired 2p 2s parallel with 3 Ampertime 24v 100 amp hour batteries. I started with the 4 and added 2 of the 24v a couple months later. I just added the 3rd 24v battery just a couple months ago. I now total 500 amp hours @ 24v. Charging with 30 cheap used 240w panels from Santan Solar (thank you for that tip too) and two Midnight Solar 150s limited to 90 amps each to keep the temps down. I did have them limited to 80 amps each before I installed a 10” fan plugged into a temperature relay to help stir the air a little. I even have a 12v 50 AH battery that I tie in to keep charged for my trolling motor or portable power supply with a small inverter. Breaking all the rules and having no issues. Thank you again for all that I have learned from you. You inspired me to take the plunge and go gridless!

[@landonashby2029]

An advantage to going the DIY route, you know exactly whats in it and how its built. There's some peace of mind in that. Even if you are the only warranty you're going to get on it.

[@GiantsNinerFan56]

I bought 2 a year ago. So far no issues. But I don’t really boondock. Just wanted security in case hookup n/a or power outage.

[@dheller777]

I bought two of them on your recommendation in your other video. Glad to say they are both running very well and I have had no problems with them.

[@LibertyDIY]

I have had the Weize 300ah version for about 6 months and so far I love it. Same with Ampere Time 300ah. Also had Weize 100w panels that performed well.

[@Tipton_Wildlife]

I've had one for a year now and it works great! I've even run it down until it auto shut-off and had to jump it with my car battery to get it to charge again but it still holds a charge like new.

[@BeefNEggs057]

The low temp really works. Got two of them for an camper about 6 months ago. They are solid so far. Not spending more than I have to. The 200 amp hr is $600 so even better deal.

[@aarontshaffer]

Component inconsistency is a total SHAM. Thank you for calling it out! Not enough of this on youtube!

[@imageinphoto]

I have two Weize 100 amp hours LiFePO4 batteries purchased July 29, 2022. Inside my Escape 19 RV trailer they are working fine. They are paired with a 300ah Chins LiFePO4 Smart battery in an unheated storage box outside of the trailer. They were all purchased based on your videos and I've been happy with their performance.

[@MrGordy61]

Hi Will, Great video as usual, Only gripe is that you and I have a very different idea of what "dirt cheap" is ;-)

[@krissfemmpaws1029]

That's a good point about the 12 volt sever rack battery. As I've said before our plan is to build an off grid property with a 500 to 700 SF home and use 12 or 24 volts for the lighting and a 48 volt inverter for the line voltage needs. Using two systems gives you a bit of redundancy in case something goes down.

[@MrWhiltetail]

Finding different internals is EXACTLY what I would expect from the Chinese. I studied their business culture years ago when I was looking into being an importer. It's very common for them to use whatever is handy or they can get their hands on that will get the job done within their often loose parameters and their quality ranges all over the place and can be quite different from unit to unit. Especially when having different workers hand building that product.

[@bobholland9924]

Will I gotta tell ya that forum is awesome. And your famous in the off the grid community. Every time I go to recommend your channel to somebody local. They already know who you are. 😎

[@michaelbates5202]

I bought 2 of the 300 amp hour batteries from Amazon after your first tare down video on Weize batteries. Installed them in my camper. And so far no complaints from me.

[@mrhalfstep]

I think many of us, myself included, are buying batteries in this price range just to replace some paired 6 volt golfcart batteries in our campers or to get better runtime and lifetime use in running trolling motors on small boats. Just saving weight, compared to a 12 100ah LA battery, can make these worthwhile in many none solar uses. You're focused more on building solar systems, but a lot of people have no desire to do that, and a server rack battery would be useless to them. They just want a superior "drop in" replacement for the old LA technology and the peace of mind that comes with knowing it will last their lifetime if they are middle aged and use the battery in a typical cycling profile. I'm really glad that you are following up with these drop in batteries because there is a huge customer base out here, that aren't building power walls, that also need your input.

[@Core-vu6mc]

I have three of the 50ah Weize batteries. One is used for a remote mobile camera that I move around my property. The other two I use for Christmas lights on either side of my driveway. I bring them in to charge. Mostly no sun in the winter. The mobile camera rig is just easier if I don't have to include a charge controller and a panel.

[@johngrogan7585]

Thank you. Please keep up your hard work on reviewing products. Love it

[@mikedodger7898]

Great value Will !! Consistency: You have discovered something that has been a large difference in "retail" or "consumer" products vs professional grade. This is true for so many products. Suggestion: I think there is a lot of value in you doing more "consistency round-ups" to evaluate top brand products to see how much they change, over time. Perhaps once per year for a category.

[@jedics1]

Cheap Chinese batteries lasting as advertised is probably the best marketing for reliability that LFP could ever get :) Good advise on getting the biggest AH cells you can practically get, those 300ah prismatic cells from china are incredible value for money.

[@kevchard5214]

At the beginning of the video I was starting to regret buying a SOK battery but now that I watched the entire vid I am glad I spent the extra.

[@davidconner-shover51]

I bought a CHINS 300ah about a little over two years ago, the thing operates exactly as advertised still. I put it into a large camper van with a fairly large solar array, it limits charging to 60 amps, it has a hard cutoff at 200 amp draw within +/-3A. I learned a lot working with this, but the battery still works within spec at 99.5% original capacity I liked this so much, The next year, I bought the 400amp version for my folks home, who live off grid. better specs all around (charging/cutoff voltages that better match lead acid) no need for a quarterly drain down, even better relative short term current draw. The first battery showed up and was a dud, failed in a week, it retained capacity but couldn't deliver more than about 20 amps, I returned it for a new one, no issues since.

[@vitalhoma2553]

Man you keep this company’s on there toes 👍🏽 checking their work after a year thank you

[@jauntyfox]

I like owning 4 100ah batteries instead of one 400ah or two 200ah because I can split up my system if necessary. A young child or old person is probably capable of moving a 100ah LiFePo4 battery if necessary, or if there is a disaster situation and I need to give one or more battery to a loved one I can do that. Or use one as barter and still have some left. I like having my system be modular and separable but still functional

[@sailingrumrunner]

Funny that the thing you liked about SOK was the metal case. I bought 2 after watching your review of them. Put them on a boat and one of the cases rusted badly. SOK sent me a plastic marine case as replacement for free. But, the layout was different and I had to rewrire it to fit the BMS. I like the idea of a cheaper, plastic battery for a boat.

[@my_channel_44]

The limiting factor is the 100amp BMS. You cannot use these types of batteries to direct replace the sagging FLA or AGM batteries, as the motor's starter pulls 300amps in a caravan. Dakota DL+ costs 2x as much for their 60amp but can do 1000CCA's, and does not need any modification of the charging system.

[@my_channel_44]

As I said in another comment, the main system is (and should be) 48v LFPo. Then, charge your 12v LFPo from the inverter with the included charger from Dakota.

[@masterofnone6620]

I have one of the thermal self heating units for two years now and it's still good. I have a regular one and it's also been good.

[@GanderFlight]

I put one of these in my RV last fall - I hear you loud and clear on price and quality - but overall I just needed a single lithium battery to swap out my lead acid that I can fully discharge without damaging it and having it last 24-36 hours running the 12v options in the rig. If I were doing a whole battery bank or a big solar setup I'd choose something different - but for a direct swap in an RV this makes a good low cost option

[@wt9653]

I think it's pronounced wise? My brother installed 3 Weize in parallel. He is off grid since fall of 2020. Zero issues. I have Zoom batteries. I've had zero issues.

[@stanleythomas8457]

I like how you are always updating the store with your current favorites . When I choose my installer , they will need to be familiar and adhere to this website, thanks Will

[@pterrydactyl]

Will, was there any difference in the product or model numbers on the cases? Might suggest build differences. Thanks for all the battery teardowns and testing.

[@Strike_Raid]

I have one of those TimeUSB 100Ah batteries that I fully cycle almost every day for over a year and have had no problems.

[@mikes1362]

I have no complaints about Weize customer support. I had two 100Ah (trolling motor) and a 50Ah (fish finder) on my boat. They handled my issue with no headache whatsoever. After about 6 months (well past the Amazon return period)the BMS on the 50Ah kept shutting down and I would get zero volts. I messaged Weize about the issue and they replied within a day. They told me how to reset the BMS. worked fine for a couple of weeks then it failed again. I messaged them again about the issue. They offered the choice of a refund or replacement. I went with a refund. I bought another 100Ah as an upgrade.

[@richardwright3956]

I purchased 2 originally and had great luck with the batteries. I have recently purchased another battery from Weize and it has now been working everyday for the last three months. I now have 3 ampertime, 3 Weize and 1 Chinn and all are working well in small systems I am running.

[@dougberg8253]

I bought 2 of these in June of 22 and have been happy with them so far. I was in freezing weather once and they refused to charge as they should.

[@andrewt9204]

The only reason I like these 100Ah units is they are easy to move around when needed. Pretty hard with server rack batteries. I also use them as a portable 12V source when needed. My friends power ran out last summer during a storm so I grabbed my 100Ah CHINS and an inverter so his sump pump could stay running. However, I wish they would use a smaller casing, they don't need to be that large.

[@gf2e]

Same here! I have a 200 Ah AmpereTime battery and it’s annoyingly heavy. Two 100Ah would’ve been so much easier to move around. The server rack 48v one I have is even worse.

[@melquisedecrivers-suarez4618]

After watching your videos I'm convinced I did the right decision to build my own system in my van,

[@kidonaboat]

I bought one of these just before this video came out. 300Amp/hr. The output is suppose to be 200amps continuous. Battery shuts down around 98 amps. This one will have to go back. It won't even run the coffee pot without shutting off. Hopefully it isn't a pain to return. Wish I had watch this video before I bought it. Watch the last one on this battery, that is why I bought it.

[@gwsloan]

Thanks for the info. Just bought one from Amazon for my 54 lb thrust Motorguide trolling motor. Kind of regretting it now after getting your take on it. Guess I'll find out.

[@shauncornish190]

thanks for the revisit I just picket up 2 just because of your 1st review, just installed them last week changed out my converter, thank you for what you do SC

[@thatandersenguy]

I have (3) 100AH of these that I purchased about 10 months ago connected to 600 watts of solar in my RV. Live and travel fulltime and honestly haven’t had any issue with them so far. Totally agree about buying a larger 200 AH or more but had space concerns initially. Thanks for the videos!!

[@theroadnottaken9378]

No matter which product, customer service is top priority for me, no service no sale, this is true with many china products.

[@paulkoval8599]

Hey. I got 2yrs on a pair of 100ah. No issues. Im off grid for real near Tecopa.

[@stevencartlidge6574]

I understand what you are saying about 100amp batteries for a system. But I and many other people are looking at 100amp batteries to use in their boats for lights, trolling motors and fish finders. So there is still a need for these smaller batteries.

[@stanjuan1178]

I can tell you my story concerning "Why people buy multiple 12volt 100ah batteries". The fact of the matter is, I'm 47 years old and my primary interest in for RV use. When I finally took the dive into LIFPO batteries, there were two things at play. First, my experience with traditional Lead Acid 12v RV systems. My knowledge was antiquated and to some extent, this lead me down the wrong path. Second, I did a lot of research on LIFPO batteries before I bought mine and I was exposed to lots of Battle Born videos. These were touted as some of the best of the best. And guess what. They were 12v 100ah batteries. This all sort of fell into place with my old-school knowledge. I had a battery box on the tung of my RV where two 34 size Lead Acid batteries would fit. And I put two LIFPO batteries in there. I discovered that the batteries were so much smaller physically, that I could fit a third one in there, and so I did. In my defense, battery tech, solar tech has moved,,,,,,, sort of rapidly from my perspective, since i was first exposed to battleborn batteries. (I bought renogy batts). It's only now that i'm being exposed to the idea of Server Rack Batteries and all in one charger inverter units. Recently, I've been really turned on by the Delta Flow pro. I like it because I can literally strap it into the basement of my RV and plug in the shore power cord. That's it. Done. I can plug my suitcase solar in if I want, but really the 400 watts of solar is just for fun. I'd charge the EcoFlow the same way I charge my battery bank now. By running my generator a couple hours a day. The beauty of the Eco flow is how simple it is. There's literally nothing to do. Basically just install a strap over it in the basement. I watched your video on using a sever rack battery and an EG4. And while it's appealing being both cheaper and more power, it's certainly not easier and I can't remove it and use it for emergency power at my house. So,,,, I'm torn for my next RV. Eco Flow? Or server rack battery? I figure I got two years to figure it out. The set up I have for my current RV works amazing. Though, i probably spent too much and I could have done more with less. Still, It's soooooooo much better than the old Lead Acid system that I'll eat it as experience gained.

[@mannyfragoza9652]

I always find it fascinating how you are so enthralled by the Batteries Temp sensor .But i like your videos, and they have helped many learn a lot about Solar we are lucky to have you.

[@rodmartel3143]

If you lived in Northern Minnesota with a temp span of -30 to f100 you also would be concerned 😊

[@mannyfragoza9652]

@@rodmartel3143 Brother Will lives in AZ

[@kevinplunkett6393]

We have 2 of them in our camper after the first review you made. So far they are doing well, lets hope they continue to do so.

[@LITTLEEXPERIMENTCHANNEL1]

When you get the battery you can activate the bms by adding a quick charge to it. It will wake the bms up on some batteries.

[@gregorykwiatkowski1934]

I purchased 3 Weize 12V 100ah April 2022 and 2 went bad(would not charge) after 1 month. I contacted customer service and they replaced them with in 30 days. So far all 3 have worked the rest of the summer 2022.

[@1GREATDANE]

I bought 4 CHINS 280AMP 12 Volt Batteries on Your Recommendation and Wired them for My 24 Volt System

[@augietoth46]

3 years owning 100AH, 50aBMS, I know it is half of BMS capacity, discharged too much for brief time, never had issue and impressive recharge rate.

[@user-cu1lv4ov5w]

I commercially clean swimming pools and use one of these in my vacuum so it gets used and recharged a ton, 3-5 times a week depending on the time of the year. About 18 months later it’s still working great and holding a charge as when it was new. Also if it makes any difference it lives in the back of my truck all year in the heat of summer and freezing winter

[@Tumbleweed5150]

I would like to see more HIGH temperature shut-off tests, as I live where it gets hot, but hardly ever freezes. Thanks! Love your videos!

[@DavidDroit]

I just got off the phone with Weize customer support. They added a dedicated support beginning 3 months ago. This is a good sign.

[@coolreviews4u87]

Thanks Will for doing this again. I was ready to buy the Weize after your first review, but hesitated. Glad I did! Also it lead to me your teardown video the the Powerurus battery and that impressed me a lot. MUCH better build quality for not much more money over these budget brands like Chins. I now see the Powerurus batteries are now listed first on your list of 12v LiFePO4 batteries. I bought one through your link and it's been working great now. $0.28/Wh, low-temp protection, bluetooth (the Epoch Li-ion app works better than the regular one), 200A BMS. Only thing I don't like is the case is HUGE and is probably a lot of wasted space in there.

[@curtislincoln6044]

I still love your videos , but your focus seems to have changed from small systems to multiple server rack batteries and large all in one systems that can run air conditioners charge electric cars. All of this is way out of my price range. I wish you would do some more videos on how to optimize smaller systems. I built my system from your mobile book The off grid King with a transfer switch you did a review on. Still need videos on how to get the power to the house from the shed. I just want to run freezer and refrigerator. And maybe switch to 24 volts eventually. You have taught me a lot I hope you will still help us small system guys with occasional videos. Thanks

[@JPHET37]

I have 2 of this since 2021 so far so good I use them in series for a 24v to power a brushless trolling motor. If they gone down in quality i probably go with another brand 😊

[@outoftexasRev7v9]

As an owner of 12 100-amp Battle Born batteries; there are many reasons to buy that configuration. Mostly packaging/placement was my concern and need for my RV solar power system install... I've been happy to pay the entry fee for excellent quality and dependability and the peace of mind knowing I could reach out and speak to BB/Dragonfly Energy over the phone if that I did have an issue. [Weize is Dumb at best]