EVE 280Ah 3.2V LiFePO4 Prismatic Batteries, Review and Testing

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Today we'll be taking a look at the EVE 280Ah LiFePO4 prismatic batteries purchased from Dongguan Lightning New Energy Technology (Alibaba). I ordered 4 batteries to create one big 12V battery. This is the first time I'm diving in to these style batteries and still have a lot to learn. Will they stand up to the rated capacity? Watch and see!
WARNING: Lithium batteries are dangerous and can result in fire! This video is NOT intended to be instructional or a "how-to" lesson. I am not a professional. Do not attempt anything you see here without first contacting a certified and/or licensed professional.
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29 июл 2024

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Комментарии : 776

@DCGULL01 3 года назад

First, THANK YOU VERY MUCH for taking the time, spending the money & doing all of the 'heavy lifting' of testing these cells (that I was sooo excited about!) I'm more than a little disappointed that the cells varied by so much? Clearly, 2 cells came from a single batch, and the other (2) came from another. They varied enough that I wondered if 2 of the cells were from say 'version A' and the other 2 came from a more recent & improved lot. That being said: * I probably would've used a lower gauge wire to reduce losses (say 6 AWG or even a 4 AWG)? * I may've tried to do a .2C test, but- really I'm being a nitpicker, and, the wiring mentioned above would've been less of an issue, but... * I thought each cell was limited to 2.5v, so I was surprised to see 2.2v as the bottom? Asking? * Would it have helped to parallel the cells for a day or so- for the BMS & preventing the need for a bottom balance? * Do you think it might've performed slightly better (275 -280AH) if you had bottom balanced? Great test, great review & THANK YOU 1,000 times!!! I genuinely appreciate your efforts. Noted: another gentleman purchased 16 cells for a garage solar power project and he only was able to get @ 250AH or so. Perhaps they are slightly less powerful and they DO have limitations (none that will disturb me using them..) But, they still have a TON of stored power & the chemistry lasts for so many cycles!!! Dave

@hubertnnn 3 года назад

Its the role of the BMS to handle balancing for you. Having the cells connected to a bms for a day should give you the same result as connecting them parallel - they should get balanced. And a BMS is safer since it wil reduce/regulate the balancing current.

@LithiumSolar 3 года назад

* Thanks!! :) * The read/black cables coming off the battery were 4 AWG. The black cable from the shunt to the inverter was 1/0 AWG as I already had a piece with ring terminals crimped on. * One thing I find interesting about the prismatic LiFePO4 batteries I've looked at is the capacity is usually given at a 1C discharge. I find that hard to believe, but I haven't tried a 1C test to see what happens. With this in mind, I think a 0.28C test is close enough to 0.2C commonly used by NMC chemistries. Lower amps may have resulted in another Ah or two, not sure. * The spec sheet for these batteries gave 2.5V as the low cutoff. The BMS was set for 2.2V. I can't change it for this particular BMS and wanted to leave it go to see what would happen (if the BMS would shut off). The voltage drop at that point in the discharge curve is so steep that the extra between 2.228V and 2.50V didn't make much of a difference. * Yes! I do think paralleling beforehand would have helped. I will be testing this later this week to see if there is any difference. I will report back my findings. I don't think the iCharger balanced long enough even though I had it set to "slow balance".

@DCGULL01 3 года назад

@@LithiumSolar I hope that you understand that I'm NOT questioning you in a 'snarky' way, I'm really trying to learn more (and, I'm more of a NOOB!) while being 'clear' instead of loose. Thanks (again!!!) for buying & testing these- I so appreciate all of your efforts! I was planning on using (2) Bluetooth programmable BMS' recommended by Will Prowse & paralleling them on arrival, discharging to a lower state of charge, balancing- charge & do a .2C rate test. .28C is so darn close- it thought it was higher (my bad!) Either way, 271AH is purdy darn close & still an exceptional value. I DO wish you had received 'matched' cells by lot as well as charge profile & resistance but at that price- it may be too much to ask! Hahaha

@DCGULL01 3 года назад

@@hubertnnn I think that Daly BMS' only charge at the very top of the charge cycle, and, often needs several charge cycles to balance the cells. When installed, the cell voltage variance was too large for it to even work. The resistors are pretty small on most BMS' that I've ever seen. With such a flat discharge curve, the amount of voltage in each cell can be pretty large -especially in 280AH prismatic cells!

@LithiumSolar 3 года назад

@@DCGULL01 being snarky didn't even cross my mind... Out of all the comments, yours was the one I pinned lol. I am not an expert and am here to learn too. One reason I make these videos is I love reading through the comments, ideas, hearing what others are doing, etc. I do agree, 271Ah is still fantastic - I guess I just expected to see the full 280Ah after what I've been reading from others. I'll be ordering my next batch from Basen (seems to be who most are recommending) and getting 16 at once. Hopefully those will be matched. I love the Daly BMS for small builds and testing, but I'll be using a Batrium on my final production setup :)

@s.mendez7160 Год назад

Wow! a most excellent video. Great production. Lighting, audio quality, and your narration. Just easy to watch, and appreciate your thoroughness. Going to watch more of your channel. Thank you!

@lckoolg622 3 года назад

Your video shows the value of a testing setup and spend time on balancing and discharge testing new batteries. Thank you

@casketking Год назад

Man, great video. Your whole presentation was straightforward and no fluff. Keep up that great work.

@tommybronze3451 3 года назад

Dude, fantastic test ! Yes in the industry we're using automatic expensive equipment to cycle cells for test, but the test seriously boils down to what you have done - GREAT ! IF you are planing on using prismatic cells long term I would only suggest to provide a box that applies pressure to prevent cell swelling, but I think this is redundant since you seem to know what you are doing !

@usurpinesusanti3149 3 года назад

I love the way how you concetrate the right infos in your video and focus. Well done ! I wish every youtuber would do that. I am waiting for my cells coming from China in a few weeks and i gonna build myself a 24 200ah solar battery pack for my camping van. I am looking for how to test my cells the right way so i know what i got for my money.

@offgridwanabe 3 года назад

I've watched a few of these for the 280 ah and most get the 280 or close with all the wiring and such 271 seems close enough for me. You do great work thanks.

@dantronics1682 Год назад

The bms cuts out at 2.28v so he didnt pull the max ah from the batteries

@nateethington76 3 года назад

Thanks for the video. At first, I thought it was going to turn out bad when they didn't quite match in terms of build. But the results aren't too bad. Definitely didn't scare me away from ordering some.

@SandervV555 Год назад

Very comprehensive test , nice to follow with good explaining and commentary. Nice equipment also.

@bizim_eller 3 года назад

You're good man, doing this test. Thanks for the time, effort and info👍👍

@timyates807 3 года назад

Another amazing video , detailed and clear . Thanks so much for your easy to follow vids . Love em ! Take care

@64MAGA24 3 года назад

Thanks so much for classroom technical data on these batteries. I currently have 2 200ah AGM batteries. They charge up great and fast (no complaints) I just have 70 (max) of only one battery for usage. I live full time in my van and after 1 year full time I’m ready 4 a change. I just can’t afford 2 Battleborn type lithium. Thanks 4 great post and channel. Look forward to more videos on this subject.

@GordLamb 3 года назад

Love your precise, detailed presentation style.

@jtr82369 3 года назад

I’m going to build this batt, you’re the 2nd vid I’ve seen about this & for the price, you can’t go wrong 👍👍

@tariqalmutairi1403 2 месяца назад

hey, two years later, are they good ? do you recommend that i buy ?

@jtr82369 2 месяца назад

@@tariqalmutairi1403 actually, rack batteries are so cheap now I’d buy them so I have a warranty & a professional looking installation. I saw 48v 100ah rack batteries for $1150 recently.

@BorgOvermind 3 года назад

Thanks for the review. Such cells seem good and powerful, I even used them for welding directly. They have the or near the stated capacity. What we should research is their life-cycles. This is the only way to see if they are viable or not. You can find cells apparently with excellent specs that do even beyond the specs in initial tests but they quickly drop capacity after only a few full discharges. I've seen this in some cheap and apparently very good Li-Ion 26650s. I don't have the means to do an efficient cycle test on high capacity LiFePO4s. I doubt they get anywhere near the stated cycles.

@meganote 3 года назад

Thanks for the review. I just ordered 4 280Ah cells from an eBay seller for about $170/cell, so not as good of a deal as yours... I’m just hoping they are matched, new cells, as they were advertised! This makes such a nice, compact, high capacity battery. Even at what I paid, it will be cheaper per usable amp hour than purchasing AGM batteries (considering 80% DOD for the LiFePO4 and 50% for the AGM). Thanks again for the review/capacity test!

@raysmetzer3153 3 года назад

That’s a small package for a lot of battery. 280 ah. Wow Nice video. Thanks

@mexicanfarmer 3 года назад

How can you see batrium info on a tablet i can figure it out how to do it?

@ryansnedigar4111 3 года назад

Great video. Thanks for the specific information. Keep up the good work.

@benssolarandbattery 3 года назад

I've been debating selling my 16s NMC pack and dropping $10k or so on a massive bank of these. I don't like that they don't even have the rated capacity out of the box though. Thanks for digging into them!

@K405X 3 года назад

Find the good seller, based on reviews mostly... 16 batts should be around 1.5k!

@henry8100 2 года назад

@@domatic 15k vs 1.5k

@dantronics1682 Год назад

I do believe the chap said the bms cuts out at 2.28V not 2.2v so how can you say the batteries are not at the rated capacity?

@daveduncan2748 3 года назад

You got 97% of the rated capacity, and your breaker and negative cable were generating some heat. The 300 mV drop from the terminals to the shunt is also about 97% of the voltage, so the cells seem to be pretty close to 280Ah. And for that price, seems like you did well!

@mcg6762 2 года назад

The losses in cables, breaker etc do not affect Ah-measurement. The shunt measures the current going through the circuit and it does not matter where the energy is dissipated, whether in the actual load or elsewhere.

@daveduncan2748 2 года назад

@@mcg6762 Errm. No. I don't believe that is accurate. Any losses between the terminal and the shunt (which is where my comment clearly identified the 300mV loss) is dissipated as heat before it any measurment by the shunt. That 300mV X (the amps) equals power lost at any moment, and power lost over a period of time is lost energy. See the First Law of Thermodynamics--the Law of Conservation of Energy for more info.

@mcg6762 2 года назад

@@daveduncan2748 Ah is different from Wh. The shunt measures current. All current must go through the shunt, regardless of where the voltage is dropped.

@The2000redrocket 2 года назад

@@mcg6762 i think he is sating you would need a shunt at each separate hot device to catch what its individual loss is.

@mcg6762 2 года назад

@@The2000redrocket If you have more than one shunt in the same series circuit they would all measure the same current. Basic circuit theory. The current is the same everywhere for a straight series circuit.

@whatthefunction9140 3 года назад

Supplier is everything. Keep us posted

@ProspectorTripp 3 года назад

Pretty good for the cost.. still not as Advertised! Truth and honesty is the most important thing when selling a product! Thanks ✌️PT

@DIYjust 3 года назад

What is the cell balancing performance(or ability) of this bms? Wouldn't it be necessary to install an equalizer(Active balance)?

@davidgolden6068 3 года назад

For real great info, thanks Ron Howard!

@sotoshinakamotor7087 3 года назад

With a software BMS, can check all data easy. Good video and beautiful inverter

@jingdude 3 года назад

Thanks for the video! I'm thinking about getting these. How do they do after a few cycles?

@patrickburton6130 3 года назад

Very informative, thanks and happy new year

@WildcatsCMA 3 года назад

Great Job. Thanks for the details!

@adi001fly 3 года назад

Hi, can you please tell us icharger x6 settings for balancing these 280Ah batteries thank you

@darrenorange2982 3 года назад

Can you run a charging test to see how well it balances without the balancer? Likely they should charge pretty evenly, mostly the BMS should not be needed?

@katokhaelan4881 3 года назад

Wow, glad I found your channel. Thanks for the video

@GaryOutdoorsLiving 3 года назад

Thanks for the video. I'll be biking two of these for our rv. I'll upload a similar video when I'm doing it. Learning a lot about lifepo4.. Thanks.

@MrBoatman46 3 года назад

Good test. I wouldn’t be cut up about about 96.4% of the rated capacity since by your own admission there were heat losses (resistances) in your circuit that happen before the current shunt. Well done though and thanks for a good review.

@JB007Rules2 3 года назад

This is great! Will Prowse also just posted a 280AH battery capacity test but his link to Alibaba was different and a tad more money ($443 VS $410).

@marktheunitedstatescitezen185 3 года назад

Great Job ! I’ve gotten 280Ah 3.2v Lithium Phosphate from AliExpress about 108.00 each and I asked if they were grade A or B and the seller wrote back Grade A being made as they were written ! I have not tested

@axellohse8426 3 года назад

Thanks for this Video! I want to built such one in 24V for my Truck, wich BMS You are used?. I'm unshure about the dimension? 100A or more? What do you think?

@rickyroaster 3 года назад

Sorry for I didn't catch how long the test was? would be good to know thanks,

@aappiah1 3 года назад

Great information,thank you for sharing

@shinosg-wiz4619 3 года назад

I've got a question. Wouldn't be better using M6 aluminium studs? Preserving the cell's threads.

@VincentsfamilyCali 3 года назад

Hello experts, I put a 4S DALY BMS to my 272AH pack and check the voltage from BMS P- to Batter B+ and it show 3.11V, when i check from Battery B- to B+ it show 13V.... is the voltage from P- suppose to be same as B- ? thanks

@lottemartinejrstad1969 3 года назад

hello, can you build another pack that is identical with its own bms and the paralell the two batteries in a 4s2p config? or will the bms´s not handle that?

@evdedios0766 3 года назад

Pls help have a 16s 280ah my bms is daly 120a but bms shuts down at 3v and cant full charge at 3.65v only around 3.35v. How can i cange bms settings if ordinary daly not smart bms?

@nielclydemaraon5356 3 года назад

Thanks for sharing 👍 Can i ask some question sir, I have 3.2v 100ah connected in 4s, what should be the BMS rating (amps) I would use?

@thomasnyanfore8424 3 года назад

have you done a review of the smbs0?

@rabk5702 3 года назад

Love ur stuff keep it coming merry Xmas 🥳👍

@N8FLY 3 года назад

Nice video. Thanks for creating this.

@jakecourtright1224 3 года назад

Great video. getting ready to buy these cells. really great value now on Alibaba. $459 for 4 of these cells

@glisse45 2 года назад

hello, what tightening cut of the connection screws

@diysolaradventures7894 Год назад

how did u do the wireless lcd screen i want a setup like that

@AD6DMDennis 3 года назад

Very helpful test, thanks!

@RollinHomies 3 года назад

So how long did the space heater actually run off the battery pack you made?

@judeg.8101 3 года назад

Learning a lot of good information thanks.

@grogginess 3 года назад

Great video. Out of curiosity how long does the heater last before battery is too low. Thankyou

@TDmillerproduction 3 года назад

How many batteries would I need to build a 48V 40 kWh size powerwall?

@PardeepSingh-wt8xo 3 года назад

excellent demonstration

@emmanuelgaviero5669 3 года назад

I really Thank You for the video. It is so simple to understand! I am planning to install solar in my little MacGregor 26X sailboat, with lithium. I am a DIY guy, so I appreciate really your advice and links. I subcribed. Lovesssssssssss

@lnxpro 3 года назад

Awesome stuff! :) Thank YOU! :)

@TheGrimshaw 3 года назад

Hey do some bms can be wired a 4s and 8s battery pack?

@waqasnaeem4908 3 года назад

I have lifep04 4s battery with bms like DALY (but not daly other chinese brand) when i connect with my conventional 12v lead acid inverter and charge it, 16 volts show on multi meter l, is it ok or dangerous?

@marktheunitedstatescitezen185 3 года назад

Very accurate ! Good job explaining !

@PentaxLife 3 года назад

What is your opinion about compressing of these battery cells

@cbiltris 2 года назад

Hello. I have a question. I have a 250amp AliExpress battery plus his 250amp Daly BMS. When I'm charging, I have 14.1 out of the charger and in the BMS But, out the BMS (P+) I only have the battery voltage 12.9. and it's not increasing Am I not supposed to have 14.1 or more than the battery voltage out of the BMS? Thanks

@huysworld701 3 года назад

thank you so much, I am planning to build a DIY power box using these 4 of these 280AH cell. Learning from your last video, i will need 4x280ah battery cells, 150A BMS, MPPT Charger, 2000 Pure sine inverter... how many fuses or breaker do i need for safety measure and where is best to put these fuses? Will i also need some kind of relay circuit device? what is the recommend wire sizes?

@Careerextendersmassagetools 3 года назад

What exactly are you powering the Icharger X6 with?

@rhysbrennan90 3 года назад

Would these be safe in the back of a ute or truck as they say in the states. Gets up to 35 celsius here and it would be hotter with just a taunue cover over the tray. With the right boxing would it be safe?

@peterorthmann5612 2 года назад

Please give details for the display you used to monitor the voltage

@gg-gn3re 8 месяцев назад

does having them connected in parallel automatically balance them? (assuming the voltage is near identical when you connect them so it doesn't blowup) nvm I see several studies that say they should be left in parallel a few days before building a battery

@Mrnhorney 3 года назад

what wires do you connect the charger to?

@patrickmclaughlin6013 3 года назад

Maybe cycling them a few times will help improve the performance? even with what you got out of them still looks like a really good value Thanks for the video

@buckfiden8445 3 года назад

I'm pretty new at using batteries for anything. I am curious on how long did that heater run and how many watts was the low setting? Also I'm considering converting a 26 ft McGregor M sailboat to electric. I believe it's less than 4,000 lb on the trailer, and has a planing hull but needs to make at least 10 knots to plane. But I'm not sure how much I need and what 100 amp hours can do or 200 amp hours so on and so forth. not sure what size of electric motor and how long will it run. Not sure if the investment would be worth it. I really need to get 20 nautical miles out of a charge. Any suggestions?

@michaeldoherty2289 3 года назад

That is a lot of eneregy storage and charge cycles for the money! What I don't like is the 6mm lug screws and the few threads that actually thread into the aluminum lugs. I built a battery using 240 ah cells purchased directly from Shenzen RJ Energy. One of the lugs stripped out even though I am very careful when tightening, but I was able to tap a larger screw into it and salvage the cell. I built a custom insulated boz with a silicon pad heater in it so it stays warm in cold weather. I have used this battery in my RV for 2 years now and it has worked perfectly with 400 w of charging PV's on the roof. I have never run the battery out when boondocking for weeks on end in the summer and up to one week even in late October in NE Washingon. The 280 ah cells you have are about half the cost of the 240 ah's I bought in 2018. They are a great value if you are capable of building it yourself. I think the fragile lugs make it best for stationary installs like a remore solar cabin , and less desirable for vibration uses like an RV. I check my lugs all the time and so far so good, but I think its just weak for high vibration uses.

@lazal3m 3 года назад

I'm planning to build the same setup to replace my sedan's lead acid battery. Would you say this is a good replacement? Regarding the wires, I can see that the BMS is using 7AWG. Is it possible to replace this with 4AWG or just leave it? For the positive pole, what wire gauge should I use?

@tylerb9808 3 года назад

Would / could you assemble an 8S with these for a 24V pack, and be able to use an 8S 100A bms? My current DIY 24v 100Ah 8s bank needs more capacity, and was considering paralleling these 280Ah for a total of 380Ah capacity. No heavy loads at this time, just conservative off grid lighting, tv, general device charging..etc.. my inverter is only a 2000W cont/4000peak at this time. Thoughts?

@gonnagetya1433 3 года назад

Not sure about your datasheet, but Off Grid Garage found that his 'manual' said to let the cells sit for an hour after charging before starting the test or something like that.

@eksine 3 года назад

yes I heard 30 mins, so 1 hour is probably more correct

@rchapoteau 3 года назад

At that price i would say close enough for the AH.

@AveRage_Joe 3 года назад

Agree!

@RVMD95 3 года назад

Yup!

@Funkgun 3 года назад

heck yeah

@henryurey6629 3 года назад

Great video I’m doing a solar system in my pontoon boat thank you

@FilAmGabe 3 года назад

Question for you. I have heard that if it was stored for a while then it needs to be cycled a couple times to pull full capacity. Does this seem to be true?

@john_in_phoenix 3 года назад

These cells do seem to settle down to more consistent results after a couple of higher rate charge and discharge cycles, but as someone already explained, they also need to be cycled every 6 months when stored. The QR codes indicate that two of the cells were manufactured before December of 2019, and likely sat on a shelf without being cycled.

@dewayneavery5097 3 года назад

Oh my god. U look just like my grandpa Smith. 40’s. When I was 5or6. I am now 83. I have less hair then u. He died of an enlarged heart. I am a 22 year survivor of 5 heart bypass. Just subscribed.

@robertselene1 3 года назад

Excellent video I have built my battery pack using your information thanks for posting such great content, I have made two 12 volt battery packs with 280amp hour cells with a Daly 250 amp Bms I was wondering if I can connect them in series to make a 24 volt battery I can’t seem to find any info on how to achieve this or if it is possible.

@noneyah4047 3 года назад

Can you use this as trolling motor battery?

@hubertcampo4556 3 года назад

Hi Lithiumsolar. Great video. You tested and discharged the batterypack with a heater drawing some 900watts. How long took it discharge the batteries?

@DavidReagan 3 года назад

What kind of longevity do you expect? Does the company claim an amount of cycles?

@ricksellers396 3 года назад

Can you do an update on this brand of cells? The video is about 4 months old are they holding up? I am thinking of buying but endurance is my concern on Chinese batteries, thanks

@kittywampusdrums4963 2 года назад

Can you charge each cell to the same capacity before wiring them together?

@OP-fd4lh Месяц назад

Can I use Renogy Rover MPPTs with a 280 Ah prismatic battery (4 cells)?

@JohnnYp1234 3 года назад

any idea why you only for 271 ah ? do you think its based around the condition of the batteries or inaccuracies and loses through the equipment used or maybe a little all of the above?

@edbrackin 3 года назад

Very professionally, thourghly done.

@carlosreyes6448 7 месяцев назад

Need some help. I have the same exact 280ah. Batt cells, that i bought from aliexpress. The cells are all the same voltage but when. I ran a test. The bms cutoff way way, to early. Its a daly. Bms. Only gave me 73ah. I don't know of any other bms. To go with.

@theprepperfrog167 3 года назад

Thank you, sir.

@roda4129 2 года назад

hello, after one and half year, i would like to know how it's going on? how many cycles? and how many Ah left? Tks.

@tonymoore6191 3 года назад

Great breakdown ... one thing has me ... Building a powerwall is straight forward, I'd like to see an Automatic Transfer Switch for Grid to Battery power, I have a 200amp service, but the only ATS I can find seem to be 100amp, should I take the feed-in from the grid and split it one to a sub-panel powered by the ATS, separating out the circuits I want to power from Batteries?

@reneroman1421 2 года назад

Hello....what are the advantages of adding one more battery, from 16S to 17S, and raising it to 51v?...Thanks

@metagrid9453 3 года назад

I wonder if the resistance losses in the BMS, Breaker and Cabling could account for some or all of the AH capacity deficit of the test?

@LithiumSolar 3 года назад

The voltage loss in the cabling/breakers would be reflected in the measured Wh on the display, but should not impact Ah since amps remain current throughout the entire circuit.

@dannykzx7360 2 года назад

Is this setup copatible with Growatt SPF 5000 ES?

@proteinman1981 3 года назад

Excellent video thanks for the effort

@MaximMaximov 3 года назад

so now Amy has LF280N Has anyone received these new better 290Ah batteries?

@marioarmas9577 3 года назад

Thank you, great info.

@shinosg-wiz4619 3 года назад

Do you have any idea what's the REAL peak discharge for those cells? Why didn't you checked the capacity of each single cells instead of checking them all together? Sometimes under the top black sleeve I've found they scratched something as if a barcode or something was there. Ps. Your cell n.1 that jumped to 3.6 have you later tested if it has less capacity?

@alanb76 2 года назад

Nice test and clean setup. Clearly resistance losses don't affect amp hour testing, they become part of the load and only reduce watt hours measured. The accuracy of the amp-hour measurement (including shunt, shunt voltage measurement and time accumulation accuracy) would need to be verified to validate the overall amp hour accuracy. These cells could be within spec and the result error (-2.9%) within instrumental accuracy. Batrium mentions 1% typical accuracy for the shunt component alone and "typical" isn't a worst case guaranteed spec, plus this must be added to the inaccuracy of the measurement subsystem. Not a bad result.