DIY 48v LiFePO4 Battery Kit - Compression plates

LEV60 Cells - jag35.com/coll...
Compression kits jag35.com/prod...
Fish Paper for isolation s.click.aliexp...
48v Busbar Kits jag35.com/coll...
24v BusBar Kits jag35.com/prod...

[@ericklein5097]

Don't forget kids, fish paper comes in adhesive and non adhesive versions. That long middle piece is probably best done with non adhesive fish paper if you ever plan on taking this pack apart otherwise you'd have to cut 16 pieces. The way Jehu did it using non adhesive on some parts and adhesive on others is actually a really good idea.

[@dbeststuff777]

Your channel has become the best to watch your business kick ass. I plan on putting your wisom to work. Thank you for all you do

[@ambersmith6517]

WOW thats a awesome battery! Rubber or plastic tubing hose would look nice on the all thread even though its not needed It would be very easy and cheap to find if some one wanted it

[@dr.projectx5142]

Nice work. For making a 3.5 kwhrs pack. And the parts for making them that are 16 cells, plus buss bars and the board. And final part the bms would be in total about close to $1100 for 3.5kwhrs in DIY. The advantage here is that the cells can deliver more current for your applications and inverter types.

[@CobraR99]

You can get 5 kwhrs for $1500 prebuilt deff not worth the diy

[@microbiologycory10]

@@CobraR99these are under $700 without BMS (but with balancer). You could have 7.5kW for $1400, prebuilt can’t touch it unless you want used cells or remanufactured unit.

[@treytrey6011]

Thank you so much for breaking down the benefits and costs. It would be awesome for the nube's (myself included) if the use-case and cost/kwhrs breakdown were stated before every project. Having experienced people do the breakdown first clarifies the "why" and saves possible mistakes for the rest of us. Thanks for making the effort. That is good leadership.

[@simplyfocus9937]

Welcome back to DIY again. I like the battery. Great job

[@Electronzap]

That's a cool system.

[@JustinConnolly]

Nice design, so easy!

[@dr.projectx5142]

This bank can do 38,000 wats of discharge power!!!!! Making a larger banks into parallel. That's very neat.

[@Shmade0304]

Jehu do I have compress these cells even if I won’t be pulling that many amps.. Dam it I think I’m just gonna get some of these

[@csimone1986]

Hi, how you know how much tighten the compression screws? I mean maybe without measure the force of compression you could compress cells too much or not enough

[@jehugarcia]

Yeah it’s a big mystery since it’s not specified in the spec sheet

[@AManofGod01]

Hi great video. I want to do this to build a UPS for my server farm here at my house, but was wondering if I could add a BMS so I can run with a growwatt inverter and which parts from your site would I need? Thanks.

[@jrhardy6147]

BMS for 4 sets of these and the cabinet and face plate for rack mount.

[@jehugarcia]

It’s coming

[@josecarrio]

Good evening, Any idea about restocking the 48v 16S Busbar PCBs. I want to purchase 16 batteries but waiting for PCBs. Thanks

[@JonatanCastro-secondary]

I would love to have something like this for the bigger LifePo4 cells like the 280Ah or 304Ah. Do you think it will be doable due to the PCB size that it requires? Thanks!

[@masklessninja]

I have the same question

[@Urugami45]

Ditto....I'd love to get a couple of these for some EVE 304s.

[@fading_starz4070]

I need one of these batteries

[@rays.2480]

I have some of Block / Brick style batteries I disassembled to reconfigure, The plastic wrapping came off during the process. Where can I find some wrap to where i can make them insulated again ? The Wrap was thicker then regular shrink wrap.

[@synchronisticmelanatedmysitic]

When is the video for the 12v 3kwh battery coming?

[@hunterfrancis927]

This is why battery hookup is out of the LEV 72Ah cells😂

[@EgonSorensen]

Neat, but where's the top cover? - wouldn't want some metal near it shorting it out |-(

[@DanBurgaud]

Interesting solution

[@SearchForDeal]

What do I need to build complete powerwall for my shed to power lights, computer, and charging little powertool batteries?

[@Geekchica]

Thanks @jehugarcia for the how-to video. In the links for parts, there's no link to purchase the two sizes of spacers. As a beginner, I appreciate your links directly to the parts. Also, might you do a video to add a fuse & kill switch to the system, please? Thank you!

[@microbiologycory10]

The listing for PCB says spacers are included.

[@theculatonchannelusa]

Hello Jehu, what BMS do you recommend if I build this DIY LEV60s for 48V system. 16 cells. Where can I buy it. Do you have a recommended link. Thank you.

[@thg_df]

Does this board have a BMS function?! I ask because these cells drop voltage fast when fully discharged and jump voltage fast when fully charged, BMS is mandatory

[@chriszeref4029]

I'm really worried while watching this especially towards the end of the video when he keep on touching the green stuff that is beside the 2 probes .. This pack is now atleast above 50V and with that higher voltage it's now enough to travel within our body and can electrocute us. 😢

[@Zendukai]

mmmmm Battery replacement for the golf buggy :)

[@Carlos9244]

Hi Jehu, thank you very much for sharing all this information, just a quick question, which BMS can be used on this battery pack? Saludos desde Mexico

[@jehugarcia]

any 16s bms for lifepo4 like these s.click.aliexpress.com/e/_DnCtqoF

[@mohamedbenabdallah5633]

Total weight, kWh, and price? Are you going to do another big International order?

[@nathancarter5034]

Dose anyone know if these would work for an electric bike battery?

[@The6packsteve]

is it not a disadvantage if the prismatic cells are in a horizontal position?

[@jehugarcia]

No I’ve used cells on their side for 10 years without issues

[@The6packsteve]

@@jehugarcia I thought it might be an issue if the cells are not necessarily 100% filled up with electrolyte which could cause that anode or cathode is not fully covered.

[@ShaunHusain]

​@@The6packstevelithium polymer cells are basically a foil/jelly roll similarish to how cylinder capacitors are made there is an electrolytic gel from what I gather wrapped into the "foil" but the cells are compressed and so there isn't really room for it to move around after manufacturing (isn't liquid sloshing around like in a lead acid battery). In short the orientation *shouldn't* really affect the cells health or longevity

[@The6packsteve]

@@ShaunHusain ok, hope you are right

[@jehugarcia]

Yup we’ve taking these appart and there’s virtually no liquid inside of them

[@djstraussp]

Nice units. Any update on the correct BMS for each 48v pack? I would like to get 3 packs for my project

[@elkjagger]

Extrange… all the LiFePo4 says that you should not put the cell in that position, should be in the thinner side because the electrolite will not touch all the internal components causing a fast degradation

[@b3owu1f]

What?

[@sunnydaybadua2868]

I am really curious and anxious at the same time whether those copper tracks can really handle high amp continuously without getting really hot. If you compare the wires that you use for the main + and - and the tracks, the tracks seems to have less surface area

[@jehugarcia]

Yeah I’ll do a test, but they can handle the 200A continuous

[@clinta746]

@@jehugarcia I'd love to see a follow up video with a thermal camera on this.

[@Urugami45]

From the looks of it, the main current is carried by the bus bars beneath the PCB; the traces just lead to the connector for the BMS balance leads.

[@sunnydaybadua2868]

@@Urugami45 bus bars that are copper traces on a pcb too. Still, if u look at it, they look insufficient. But let the tests result speak for themselves.

[@Urugami45]

@@sunnydaybadua2868 I missed that detail; I thought the bars were solid, but wrapped in the middle.

[@Controlremotehp]

Why are there no 220v/230v battery packs? Wouldn't that be easier to convert from DC to AC?

[@jehugarcia]

Because everyone has been using 12v lead acids since the beginning of time so 12, 24, 36 and 48v are the most common standards there’s some 96v and 144v available but very limited

[@xjchris4209]

Where can I buy everything you have shown in this video? Your product links don't show this stuff

[@Urugami45]

You need to hunt around a little on the external web site, but it's there.

[@GregOnSummit]

Dang ... for about $1500 you can have a 14kwh battery. That's just for 16 batteries, 4 bus bars and 4 compression plates. Not bad.

[@onthelake9554]

Math .

[@b3owu1f]

What? This is about 3.7Kwh battery (with 16 cells) for about $800 or so when you add compression, bms, case, etc. What 14Kwh battery are you buying for 1500?

[@GregOnSummit]

Right, read what I said. Didn't say a complete battery, but cheaper then $2K for just lifepo4 cells. Still a good deal. So chill. @@b3owu1f

[@b3owu1f]

@@GregOnSummit I am reading.. a 5th time.. you said $1500 for a 14Kwh battery. Just cells. Got it. What battery is that? I wasn't trying to be an ass.. I was genuinely interested in what battery for about 2x this one for just the 16 cells.. provides 14Kwh of storage? I know the EVE 3.2 280ah cells.. for 4 are about 700.. so that puts it up around 3K for a 14Kwh battery.. and those seem to be about the cheapest I've seen for that size storage. So again.. link to the battery that is half the price of the EVE 280ah cells.. but same 14Kwh storage.. I'd like to maybe look at buying it.

[@AlWassmer]

Would this work for a 48 v golf cart?

[@jehugarcia]

Yes

[@Professionalminutestealer]

Hey dude i use disposable vapes and dont want to throw them away and risk them burning up a trash truck. Anywhere i can donate these or anything i can do for fun with them?

[@jehugarcia]

Take them to home depot they accept batteries

[@ericklein5097]

3.7888kwh

[@ShemaYisrael1948]

5kw ul rated for 1500 makes these not very appealing…

[@jehugarcia]

Yeah but one of these if you don’t want the hassle www.opsolarbattery.com/shop?ref=jehu

[@ShemaYisrael1948]

@@jehugarcia they finally got their ul rating huh?

[@krom6017]

I was going to post the same as for $1350 you can get a complete 100ah 16s rack battery, built-in 200amp BMS with a 10-year warranty. I did build my 240kw battery bank as there was nothing that could be bought that was even close to DIY pricing.

[@oneshot_onekill4618]

​@@krom6017 What cells did you use?

[@krom6017]

@@oneshot_onekill4618 Used Eve 280ah cells, then built four 4p16s banks, and put them in parallel.

[@comictrio]

Love your videos, but dump the sun glasses while indoors. Nobody wears sun glasses indoors :)

[@jehugarcia]

I do

[@webdev217]

MYOB

[@joelhiltz3329]

Who's wants low recharge cycles like the battery listed, not me. Thumbs down. Go away Garcia.

[@hendersonsobers396]

Do you have plates that will work with other cells, like the CATL 302Ah cells? The plates shown in this video seem to fit only these cells you are showing. I really like how the plates are built. Not sure if you made them yourself but if you did, that's awesome man!

[@jehugarcia]

Not yet but if I make busbar PCBs then I guess I’ll make compression plates as well

[@saturno4236]

I will love One of those PBC to do a 4s4p

[@ambersmith6517]

Sweet!! Looks awesome!!

[@topnotchcontent]

Thanks 🎉

[@CUSTOMWORKS7.3PSD]

This would be right up my alley if the batteries where 210ah

[@jehugarcia]

Parallel 3 and you Got 222ah