DIY 48V 320Ah Grade B LiFePO4 Battery Build: 16kWh for $2,810?!

What charger do you use?

Hello, i have 300ah 24v power bank lifep04 , can i make one more same power bank, and connect them together ? so i will have in total 600ah 24v?
if yes, how i can do it? thank you

It’s crazy how LiFePo4 cells have fallen in price since this video was published.

Have you considered fabricating and spring loaded battery rack instead of tape?

hi sir, how we know that battery have 60 Ah, example if we have battery spesification 13 Volt and 4 Ampere every once battery?

@willprowse Quality over quantity.
"Big established companies" can afford to order samples from every single supplier to determine the best products of lithium cells, BMS's, wire harnesses, enclosures, overload protection, circuit breakers, isolation material, passive cooling, cooling fans, etc.

While DIY for batteries may seem tempting at "Half the cost"... I feel that unless you plan to resell battery packs for a living with relatively low profit margins, you are better off spending the premium price of 1300-1400$ for ever 5kWh in the current state of the market 2023.

So the bus bars are not really tight because the cells bloat causing movement? Loose terminals cause resistance problems. How is this not a concern?

Can you do a video on using hybrid batteries for solar

What were the voltages of each cell when when you did a full cycle of the pack? Of course if some cells were closer to 3.6V and others were down at 3V it would be pretty clear that there is at least some imbalance. It's a very quick test with the multimeter you had on hand and would be very interesting to see.

I started 3d printing cases for my lifep04 cells. So far, seems to work well keeping the cells compressed. Thank you for all of the work you have put into these videos. I built a 12v 280ah lifep04 battery for our camper.

I have different question. Do you have any list of 1 phase 3.6kW ,two strings (MPPT) inverters which would work with DIY LiFePo4 48V bank ?
Finally got my 16 cells LiFePo4 cells EVE 3.2V 280Ah.

Hello any update on this pack ?

Define old you whippersnapper😂

I recently building a 12V 4 cells LiFePo battery to replace my lead acid battery for my boat. I bought from Taobo (Chinese version of Ali Express) from a company Jiali Technology. Cells are grade A and arrived in mint condition. The price is RMB 680 (USD 99) for one 310Ah cell. They can provide stronger packaging box for extra (USD $4). The problem I encountered is delivery from China to HK. Many courier companies refused to deliver lithium batteries. End of the day it has to be delivered to my friends home in Shenzhen China and I picked up myself and use a cross border van to deliver to HK. The delivery of the cells to my friend’s home is 3 days after placing order. Lucky I lived in HK and not US. I repeat an oder for 4 more cells yesterday.

so much great information by someone who goes the extra mile to be safe and cost conscious. i look forward to seeing more of your content.

Is the movement of the studs in the busbars due to expansion a contact risk?
Couldn't this compromise the connection?
If so, what is the best/ practical solution?
TY.

Watching your video from Bangladesh. I always watch your video. It is very informative.
Thanks for your advice and great effort.

I guess you get what you pay for, most of the time.

Hello.
How did you calculate that the sum is 16.384wh

I heated my house with BTC miners for one winter. Basically free mining.

Hey there man. I love the videos I've kind of been binging them. I wanted to ask what I would need to do if I wanted to make a 96v 60ah battery with these types of batteries. I would be wanting to pull around 200 to 250ah from the battery. This battery would be for an electric dirtbike. thoughts?

Pretty awesome system. A far cry from the motorhome back in the day!

Will I am building a RV and want about 3,500 watts on the roof, do you recommend using the 540 watt panels I have found that are currently made in India? I can get 6 of the on the roof of my 35 foot RV. I will run it at 24 volts.

Hi i love what i see whant to no how big solar pannels can i use on this battery 450 watt or bigger

I have some 280ah cell coming from aliexpress and I'm going to build a server rack style 48v battery that going to outrun the new Eg4 battery. subscribe to my channel for when i drop that video of my build.

I wish there was a diagram for how the 2 packs are connected together. I can't tell just from pausing the video.

I notice you rely on the plastic wrap of each of the cell to separate the cells from each other. Is the aluminum case internally electronically connected to the positive or negative terminal of the cell? Any chance the plastic shrink wrap around these cells break due to expansion or old age? In that case i think you need to insulate between cells. But i guess you have had no problem since this video has been out for a year

Well i listen to your advice 12v vs 24v and purchased and battery advice , ended up ordering 8x280ah EVE grade A cell package with 200A Deligreen 24v 8cell bms ,i have 1200w in solar in series running into 100/50 Victron mppt 150/60 would of been better as its pushing close to 90v at peek cool conditions but i live in hot climate 30c 38C summer temps or more heat waves well over 40c
.biggest issue will be keeping the cells cool in the shed thats insulated but temps are still well over 21c 70f ,only thing i can think off to store them in cool would be insulated cement box 3 inch thick under the slab

IMPORTANT: Will, you talked about the relief valve spitting gas all day, you can't breathe etc... So you said the solution would be stick to a ready built battery if you don't understand this stuff. But I ask: These ready sealed batteries Ex: 12.8V 200Ah, which I have seen do not have a pressure relief valve or a gas elimination valve. So, if this happens inside there, where there are days or hours leaking gas and there is no way out, it can become a gas pump or cause a problem internally, including for the BMS that is normally included inside (do you agree with that? ) You Do you know if these gases that release LiFePo4 prismatic cells are not only toxic, but also flammable? Thanks and hugs to my friend!

can i connect 8s lifepo4 320ah in series and then connect a second 8s lifepo4 320ah in series after i have these individual battery packs in series i can connect them in parallel to add a 24v 640ah system please answer i need to know thank

I have a question and need your opinion ... I have 16S LiFePo4 battery, 310 A CATL with Daly BMS use for small electric vehicle .... But now , 2 cells is mechanicaly damaged and need to replace ... Can I Replace with 280A CATL battery or must be 310A ? Or can I replace with another type of battery (eve) with 310A ? Thanks ,

Hi...if using 6kw high frequency battery charger,with rema320 connector with CAN bus protocol..is that any bms come with can bus connection? Or any can module that can coordinate with bms and the charges

How hot they get, Just wondering for keep them inside of unventilated container. Thanks

Hi . Does the battery pack bms has a data connection with the inverter ? Grtz

Nice work bro....

Hi, which BMD do you recommend for 16x 320ah Lifepo4?

I am buying 32 of these cell s ,I want to known what 8s 24volt i havé to buy to get 24 volt 320ah with BMS

Do you have to use a lithium charger?

Jents, can you supply in India?

Tesla PW and PW2 (before 2022) are LiOn. The latest ones are LFP (LiFePO4) which don't catch on fire.

the battery cell cores that have been treated at the top of the pile - all old goods - are disassembled from the electric vehicle, showing signs of swelling,

great channel, just what I needed!

HI, did you just connected the new battery direct on the old battery to charge? like a parallel connection? or did I miss something.
is it oke to have 2 different battery's in parallel to an inverter? like 1 pack is 10kw and the other 15kw?
great videos I learn a lot. I'm planning on making a 48v offgrid solar bank.
Thanks

great video....thanks for sharing this info !!

Do I have to run a compete charge check like u did on my grade A new lifepo or can I have the bms run them

use a 1 AWG cables with connectors instead of busbars .
it can handl more

you should press together the batts, I read that this increases the life of the batts and you don't produce mechanical stress on the connectors

How can you determine how long this system will provide power at those levels? New