Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Advice on better quality BMS
#1
Video 
Hi,

I’m pretty new the DIY powerwall scene and I need advice on a good quality BMS for my powerwall build. I’m buying a EAsun hybrid inverter and the battery voltage is 24v so I’m planing to build two 7s20p batteries from brand new panasonic 2900mah 10A 18650 cells. And to go with that I need a BMS , I’m looking for somerhing in the 50$ - 100$ price range. Batrium is too expensive.

Thanks in advance for your input
Reply
#2
How much are you spending on the cells and inverter ?
Reply
#3
(09-15-2018, 05:45 PM)Sean Wrote: How much are you spending on the cells and inverter ?

The cells are 728€ and the inverter is 350€
Reply
#4
(09-15-2018, 06:56 PM)Marcus_swe Wrote:
(09-15-2018, 05:45 PM)Sean Wrote: How much are you spending on the cells and inverter ?

The cells are 728€ and the inverter is 350€

That's a fair sum to spend, you might want to consider spending a fair bit more on the BMS to protect your investment.
Reply
#5
Do you have any 7s bms to recommend?
Reply
#6
(09-15-2018, 07:55 PM)Marcus_swe Wrote: Do you have any 7s bms to recommend?

No, not in price range you mentioned.
Reply
#7
Ok ? can give it to me anyway so I can evaluate it?
Reply
#8
Batrium is what I run. I got 4 of em so Smile


The protection should be very important since thats what will save you in the end. There is BMS systems for 50-100USD but are they good enough? Do you know what functions and type of protection you want and or need?
The Ultimate DIY Solar and build place
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcoming: 14S 18650~30kWh | Automatic trip breakers, and alot more
Reply
#9
Tack!

Do you know of any resellers in Sweden?
Reply
#10
I got mine direct from batrium was delivered within the week via DHL 

if you really want to get your hands dirty a member on here had a DIY solution for BMS 
I did look at it and think for my 18650s will give it a go
Reply


Who read this thread?
42 User(s) read this thread:
Blitz132 (Yesterday, 02:27 PM), LaserTony (09-17-2018, 01:02 AM), curasun (09-16-2018, 05:50 PM), michaell (09-15-2018, 07:15 PM), Riplash (09-16-2018, 04:04 PM), Bubba (09-15-2018, 10:20 PM), SiverNodashi (09-16-2018, 09:32 PM), Redpacket (09-16-2018, 12:41 PM), jonyjoe505 (09-16-2018, 08:11 PM), photon4 (09-15-2018, 07:02 PM), Hector (Yesterday, 09:28 PM), hermitdave (09-16-2018, 09:21 PM), Marcus_swe (09-16-2018, 09:21 AM), RayGenWurm (Yesterday, 03:28 PM), glyndwr1998 (Yesterday, 08:59 AM), Haslero (09-17-2018, 01:47 PM), b0re (09-16-2018, 03:01 PM), ecam315 (09-18-2018, 05:19 PM), Leipi35 (09-16-2018, 09:19 AM), Beholder (09-18-2018, 11:07 AM), John Allen (09-16-2018, 11:05 AM), gpn (09-16-2018, 07:46 PM), watts-on (09-16-2018, 09:20 AM), Kaspars Krumins (09-16-2018, 05:26 PM), jdeadman (09-16-2018, 05:42 PM), Batrium (Today, 03:08 AM), Korishan (09-16-2018, 12:34 AM), Majorphill (09-16-2018, 02:56 AM), mike (09-16-2018, 02:56 AM), Sean (09-17-2018, 06:47 AM), jesusangel (09-16-2018, 10:49 AM), BlueSwordM (09-16-2018, 08:41 PM), KtB (09-15-2018, 11:08 PM), brwainer (09-16-2018, 06:07 PM), Charly144 (09-16-2018, 02:00 PM), Ste Collister (09-18-2018, 12:32 PM), not2bme (09-15-2018, 11:02 PM), ardenking5 (09-15-2018, 09:52 PM), hookemdevils22 (09-18-2018, 08:13 PM), floydR (09-16-2018, 04:20 PM), Geek (09-17-2018, 01:15 AM), daromer (09-16-2018, 08:50 AM)

Forum Jump:


Users browsing this thread: 1 Guest(s)