Adding More DIY LifePO4 Battery Banks to my Solar System.
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- Опубліковано 6 лис 2023
- Adding another bench and 8 more LifePO4 battery banks to my Solar system. Total of 16 banks with JK BMS connected in parallel.
#lithium #solarpanels #chargecontroller
#dalybms #solar #offgrid #bms #evelf280K #lf280k
Very nice and clean installation. I like the shelves and the LED lights.
That is definitely not your first time wiring up similar batteries.
Great job
Thanks,I had some practice run wiring those batteries in the first shelves 😁.
It looks great.
You are very patient.
My client purchased DC 15V 17A switching power supplies from our company to test the same LifePO4 battery banks.
OMG. I love your battery setup.. Thank you very much,
Thanks for watching.
Wow, really clean setup. Great job.
Nice.
It makes me SO glad I went with a 48v system from day one. Cheers from sunny Qld.
yep 48V is the way,would have saved me heaps if I started with 48V from the beginning.
@@manwithfewwords3954 It’s a bit hard once you’re already locked in.
It’s a bit like Qld getting stuck on narrow gauge - 3’6” - railway lines, difficult and expensive to change course now.
(However - having said that, I did actually go a bit higher still. I started with 16s and a year later upped it to 18s as my JK BMS, my solar controller, and my Victron Multiplus II could all handle the extra cells and higher voltage. It works a treat and I have zero cell balancing issues even with two newer cells in each bank.)
This is a serious bank, about 114kWh of storage capacity
that looks cool. I will be proud of myself if one day i can do this by myself.
Very clean setup. Im also using 24v setup for my offgrid. i can you need more output power, just connect another inverter to this battery bank. So, total is 2x inverter. 1 for high usage(pricey inverter). other is for normal usage(nromal price inverter). i love this way because it can be redundacy if 1 inverter failed.
I'm running 2 Victron Multiplus ii 24/5000 inverter in parallel for this Lifepo4 setup powering the whole house, and 2 Victron Multiplus ii 24/3000 inverter also connected in parallel on a separate AGM battery setup for the kitchen appliances.
Big Investment. Congrats.
Thanks.
Why anyone would be building a 24v battery like these is beyond me. He could have saved $300+ in wiring and equipment if he had gone to 48v.
I could have saved more than that if I had started this project with a 48V system. I'm using 2 Victron Multiplus ii 24/5000 in parallel atm with no issue so sticking with it, if it ever fails then I will move to 48V.
Remember that 16 cells in series have a greater chance of problem than an 8 cells set up. A few dollars saving is nothing for the amount of money invested here. I owned a 24-volt system very similar to his, and the performance is great as long the inverter is one of high efficiency
@@pedrovalet1506 where did you learn that a 16s has a greater chance of problem than 8s? HAHAHA!
Aside from him pointing out that he already had the inverter, so why would he spend another 3000 to change to 48 V and then have two inverters he has no use for 24 V won’t kill you, but anything over30 volts can
You can touch 48v and you will not feel anythink its not ac
Love it! Dream setup. Looking to build a small system for my rv. 2x 4cell bank 308ah each cell. Would love to see more of your system, like your solar, and inverters. Cheers sean from Montreal Canada
I will do a quick video of the whole system before Xmas or just after new year. Im adding another Victron mppt 150/100 to the LiFePO system so a total of 4 charge controllers.
subscribe if you haven't already.
Here's the video of my system.
ua-cam.com/video/eW86Qh4O9L4/v-deo.html
thank you my friend :) its a really amazing set-up thank you for sharing @@manwithfewwords3954
That is a LOT of money.
Gut 🤗👍
Thank you 😊
Love it, what are the benches/shelves you used? Can you link to them please? Thanks
Bought from Bunnings warehouse,here's the link www.bunnings.com.au/pinnacle-920-x-1500-x-540mm-3-tier-urban-series-industrial-workbench-920-x-1500-x-540mm_p0145141
In my battery bank use Airpax LML circuit breakers 80VDC rated with the 52 trip curve. Protection a On/Off switches in one.
These cells need 11psi clamping force or they will bloat over time. That strap may deform the edge of corner cells as cells expand. This setup may not last 5 years.
Nice.
Thank you.
Muito top belo banco de Baterias.
Thank you 😊
Well done. I have a question: Can I use A circuit breaker instead of Kohree Battery Disconnect Switch?
@@ismailabdalla5927 yes you can use a circuit breaker.
Curious, why did you go with 24VDC instead of 48VDC? The cost savings on the bus wire gauge could be used towards a beefier 48V inverter. 48V MPPT's are cheaper, and cut the cost of the BMS's needed in half, too
What size bus wire did you use?
Your video was shared on a discord I'm in, so I'm not familiar with your history of this build. Very nice build, though. If your led strips are rgb, you can code them up so that they color change based on state of charge, and possibly even get enough detail to know which cells are being balanced 😉
copy and paste from my other post
"I started this project with a Victron Multiplus ii 24/5000 inverter and then got another 24/5000 connected in parallel shortly after, I never had any issue with it so decided to stick with 24V,but if I have to start all over again I would go with 48V to save money on cabling and buying fewer BMS."
For each inverter I use dual 50mm2 cables for each pole (2+ and 2-).
As for the led, it's an RGB with inbuilt mic so I use it as part of my mancave disco lighting which is right next to the battery shelves
(maybe I should do a quick video for it)😂
Friend, can you list all the material used?
I was mainly interested in the busbar, the compression feeler and the fused cables...
If it was purchased on Aliexpress, can you post the links?
BMS JK-B2A8S20P a.aliexpress.com/_mLHOOKM
Flexible busbar a.aliexpress.com/_mN97ZpQ
Busbars a.aliexpress.com/_mMVeHnm
The fused cables are just regular ANL fuse holder and 35mm2 cables that I pre-made before making this video.
amzn.asia/d/cMeigun
Velcro Hook And Loop Tape Fasteners a.aliexpress.com/_m0fpuio
Beautiful installation, very inspiring! How did you connect the JKBMS to the victron system?
Thank you. The JKBMS is not connected to the Victron system,I use a Victron Smartshunt to monitor the battery SOC. As for the JKBMS I use their APP to monitor individual bank.
@@manwithfewwords3954 do you use just one smartshunt for the whole setup or one shunt for each battery?
@@theGHBone Just one smartshunt for all 16 Lifepo4 banks.
Hi, did the batteries come with the flexible busbars or did you purchase them separately from AliXpress?
I have to buy them separately from Aliexpress,here's the link a.aliexpress.com/_mN97ZpQ
very neat setup. thanks for posting. how tight do those nuts need to be?
They are tighten to 6.5Nm. Thanks for watching.
@@manwithfewwords3954 tools ?
@@boomer286 Digital torque wrench from aliexpress a.aliexpress.com/_mLxvaRc
Would this setup be able to just hook up with a LuxPower 12K with the CAN Ethernet cables and everything?
I think you would need a 48V battery and bms setup for your hybrid inverter.
@@manwithfewwords3954 if this were a 48v rather than 24v, and had the CAN/RS485 ports on the BMS, I think it would mate up fine.
I am looking at what’s available, and pinch me because I must be dreaming because cost for DIY vs. server rack is literally four times cheaper. 124kWh for roughly $15k is actually insane.
I didn't see the size of the cells. Are these CATL grade a prismatics 280ah or so? How much total storage do you have KWh/capacity wise? Are you using a solar MPTT to charge, or AC during off peak hours? If so what AC charger to charge them? Why 24v vs 48v.. I ask as I have read especially for home use 48v is more efficient/better? I understand for 24v applications like motor homes/ebikes, but for home storage, not sure why 24v over 48v? The only thing I can think of is you are feeding in to something like an ECOFlow inverter that you plug your electronics in and those might only take max 50v input (my River 2 Pro has that limitation) so I have a 48v to 24v converter so I can power it (at least I hope it will work.. haven't finished my 48v battery yet).
They are EVE LF280K 280ah cells,114KWh total from the 16 banks.
4 Victron 150/100 Charge Controllers connected to 24 TrinaSolar 415W panels to charge the batteries. I'm using 2 Victron Multiplus ii 24/5000 inverter in parallel to power the whole house.
We are off-grid.
Oh wow. Nice. That makes a lot more sense. Still not sure why 24 vs 48 but that's a nice setup. Looking at 280k ve batteries right now. $125 each makes it about $2300 shipped for 16 cells. Lowest price I've seen and there due 8000 cycles now.
Throw some bolds though those shelves dude, I used these for batteries as well, they hold a fair bit of weight, but if you bump one up while working on it they just fall apart under the weight.
Your batteries look sick though, nice and neat, how much storage do you have in total ?
Thanks for the advice, did you have to drill to put those nuts and bolts in or use the slots below each shelves?
As for the batteries,total is about 114kwh.
@@manwithfewwords3954 I drilled some holes, eventually we replaced it with a steel rack. We used the same switches as you as well. They did not like the sustained current when it shorted out. melted one of the terminals.
@@BadIdea1123 I'm running 16 banks in parallel so not much current going through each of those switches,hopefully it won't melt.
I am impressed, we have 3x 32 or 96 total in our banks... not the 200 and something you have lol
@@manwithfewwords3954
cca 114 kWh? OMG... you back up a smaller village with it? 😃👍
A bit over 114kWh for a family of 5 😁
What are you using all that power for and how much have you spent so far $$$???
Just want to make sure we have enough power for rainy days.
My friend i have two options for cells. Rept or eve .
Which is better?
Thanks
I don't have the REPT to compare but I heard they are good too.
edison cells 1.2 volts each and you can regenerate them indefianaly and last decades
where did you buy the batteries?
Bought it from here a.aliexpress.com/_mKT7eY0
All that work for a 24v bank?
I would go with 48V if I could start all over again. At the moment I'm running 2 Victron Multiplus ii 24/5000 inverter in parallel without any issue.
@manwithfewwords3954
If it works, it works. Just increased amps and complexity/kwh.
Looks like a super clean and thoughtful installation!
Although, it maybe be a challenge to get to the class t fuses set between battery rows.
nice work, nothing between cell? i dont put nothing neither but some people need you need to ...
Yeah nothing as I'm not compressing them.
@@manwithfewwords3954 ok same here, not compressing them, where do you get your cell?
@@chris_mk5supragot them from Aliexpress a.aliexpress.com/_mKT7eY0
Sir,this is Abby from China. We are the first-hand wholesaler of lithium battery. We can supplier the EVE 280K with competitive price.😊
How much for LF280K cells these days?
@@antronx7 EVE 280K ,Unit price is 62USD,grade A. How many pcs do you need?
@@LuoAbby How much would 16 cells cost to USA ? Do you have EVE test reports and QR codes are not fake ?
@@antronx7 No fake,really grade A. Could I have your WhatsApp or other contact information? I can send your picture or video to confirm?
@@antronx7 A grade battery with test data
it is better to have a longer distance between the battery cabinets. from the side of fire safety
Clearly, this is UL listed, NEC, and OSHA certified/inspected battery system.
Ciao complimenti per il video, volevo sapere come configurare il jk bms che hai montato sulle batterie in parallelo, c’è un master/slave?
There is no master/slave, just connect them all in parallel.
@@manwithfewwords3954 grazie
@@manwithfewwords3954 quindi la tensione si allinea da sola, non c’è problema se una e diversa dall’altra?
You should top balance all the cells/pack to the same voltage before you parallel them,you don't want inrush current going to the weakest pack initially.
Grazie mille, farò quanto detto , farò il top balance delle celle, un’altra cosa in scarica prende la corrente in tutti i pacchi batteria?
how much does it cost ? just the batteires
about $27800ausd for 128 cells, I paid too much for the first 16 cells when I started this project😭.
Goebelpower?
@@michelnaunidda4912 these are JK BMS JK-B2A8S20P
@@manwithfewwords3954Nice build. Did you actually mean $27,800?, like more than $200 per cell?
@@adon8672Australian Dollars aren't worth much
Why 24v setup
I started this project with a Victron Multiplus I
24/5000 inverter and then got another
24/5000 connected in parallel shortly after, I never had any issue with it so decided to stick with 24V,but if I have to start all over again I would go with 48V to save money on cabling and buying fewer BMS.
Cool, but why 8s? 16s you would need less BMS and wires.
Ermm, not everyone wants 48V sir.
i have 1 x 24v bank of 280ah cells runs my hole house with only 1400w solar
👍, I started with 2 banks and it keeps on growing 😂. I'm running 2 Victron Multiplus ii 24/5000 in parallel on these batteries.
@@manwithfewwords3954 we are still on mains i built this small setup for my shed was going to live in it one day and rent the house out ,but misses likes her power bill last 1/4 was 150 dollars rather then 450 .just running huge TV and entertainment system ,my gaming laptop led lights 140 litter full size fridge ,and while sun is out at midday i get the misses to turn on Aircon 1200w 4kw window mount ,i get home from work battreys are near full and room is chilled gotta love free aircon ,, yeh i want more 8 more to start with , ofcouse in bad weather i have to wind it back ,we get few days ,, best is blackouts our fridge stays on
@@manwithfewwords3954 charge i use victron 100/50 with 1400w sol;ar maxing it out ,,inverter i use victron 1200va 24v and aircon runs on a chines 4000w-6000w 24v inverter brand name reliable
Whats the total AMP hours?
4400 amp hours
@@manwithfewwords3954 Why do each battery say 289.1 AH?
@@brainstorm3446 that's the capacity test result for each cells and i just round it out to 280
@@manwithfewwords3954 Thank You hope im not a bother i'm a beginner.
@@brainstorm3446 No problem.
Hi Nice Build... Why 24 Volt and Not 48 ?? Looking again 24 volts in Parallel so 48 but double the BMS s ??
Ok lol read the rest off the comments all good
Thanks 😁.
How many people are you powering with that?
3 adults and 2 children.
Next to this we have 16 200ah agm batteries running on a separate system powering kitchen appliances. We are going off-grid and want to make sure we have enough power for rainy days.
why not 48vdc?@@manwithfewwords3954
@@armandvermeulen2947I started this project with a Victron Multiplus ii 24/5000 inverter and then got another 24/5000 connected in parallel shortly after,I never had any issue with it so decided to stick with 24V,but if I have to start all over again I would go with 48V to save money on cabling and buying fewer BMS.
Where is the best deal for those 280ah cells? Also where did you get the bms and what model is it?
@@chadsview7087 I don't know where the best deal is but I got my cells from here a.aliexpress.com/_mKT7eY0
and the BMS is a JK-B2A8S20P which I bought from here a.aliexpress.com/_mLHOOKM
Please lift the BMS wires from the batteries, if even little insulation is damaged the wire will shortcircuit and act like a glowing stick. From than, everything will get worse very fast.
100KW·H
114KWH
@@manwithfewwords3954 Thats insane, what are you using that much storage capacity for?
We're off-grid,I just want to make sure we have enough power for rainy days and winter time. Watch my setup video here ua-cam.com/video/eW86Qh4O9L4/v-deo.htmlsi=EjeI-FaKCV5OkORQ
Setup looks nice, but as an electrician, it's sad to see so much wasted potential. With a little rearanging you could do away with most of the inverters. Now to be fair, this being the only video of yours that I've watched, I have to make a few assumptions, but from what it looks like: You wanna charge the batteries with solar and use the power through the inverters. Pretty standard to my knowledge. Did you know that the vast majority of modern electronics don't care if they are fed DC or AC, as long as the voltage is within a given range tolerance? Simply arranging the batteries to your output voltage, then charge the sting in segments. Gone are the inverters. Drawback is that you then can't feed the setup with additional outside sources unless they are also DC and the same voltage, again unless you convert them too. Then again, from what I can gather, this is an "outback scenario" so it sounds like solar is the main electricity source... Then again-again, I really don't care. These are only my thoughts... You do you mate. 🤷♂
I am unsure about most electronics can work on DC rather than AC, but I do remember fuses, switches etc that are AC rated may not play well with DC having had a fuse on a 50V piece of kit work like a light bulb for a number of minutes toasting the PCB
Lol long comment thats all wrong. You cannot just run devices on ac or dc. Sure way to fry your device or worse cause a fire.
Really dumb to spent that much on batteries and not use proper compression. They won't last.
Thank you for your input.
very fine made and layout,i need help with the bms,and i how i can contact you with E-mail.
You can ask questions here.