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Thank you

Yes this was the biggest they had. Before connecting each cell they were all top balanced with a bench power supply. Good to know. Maybe my BMS failed in low power protection in that cell. Doesn’t make sense to me why it was allowed to be totally drained when all the other cells were totally...

My BMS is a 5a balancer and I would’ve bought bigger but this is all they had. I do agree though - those leads are 20 gauge wire I think and I’ve got 4/0 coming in from my inverter/charger

Thanks for the response!! I apologize these pictures are hard to decipher lol. I did balance all the cells manually with a bench power supply before connecting. Problem 1. was on the paralleling but I believe I solved that issue/found my mistake. Presently I’m more concerned with why this 16th...

Not sure if this pic any better. Original is 9 mb so I assume it got thumbnailed down.

I see you meant pics lol. I’ll try and repost better pic

Yes they all seem to be that size. 10 lbs vs 110 lbs for my lead acid cells. This is link to BMS. https://a.aliexpress.com/_mtZRGTI

Thanks for the response. I looked over the batteries before setting them up and they had no indication of being used or damaged or refurbed. So far seller is super good. Same time I think I wired it all correctly. Appreciate your input thank you again!

Hey all! I’m 15 days into running my home off my new lifeo4 banks I purchased from Docan. We’ve lived Offgrid for 7 years. New batteries. Using the JK B5A25S60P BMS (in case anyone else has) 1 requires 3 separate contactors TE 500 A. Batteries are CATL 3.2v 280 ah. 16 per bank. 1...

Ok so thanks to you guys I have a diagram for my BMS and an English manual and now know I wasted money on the capacitor (active balancer things I bought) - excellent. ??? I’ve translated the diagram to include English in chicken scratch writing (my bad). See attached for anyone else’s...

Thank you. Watched it. Very helpful but still need piles of answers as I have a different BMS. I’ll try contacting Andy. Thank you ?

Thank you! I ended up making a post with one specific to my unit but this also is really helpful thank you much. Making headway. Best!

Thank you ☺️. I suspected this was the case but I’m glad you guys have removed all doubt.

Wow this is huge. I’ve downloaded a copy and will now spend today reading it. You’ve saved me hours of time looking and banging my head against the wall haha. God bless you!

That is great advice. I thought these were capacitors when I purchased them, the bot or whoever monitors their inbox in Alibaba suggested I buy capacitors so I assumed these were them. They look the same from the picture. Maybe I don’t need a capacitor? Thank you so much for the helpful...

Sorry in advance for all the ignorance from me on this. I’m caught in a trap that I had no intention of entering. Assumed I could swap out LA battery bank for Lifepo4 from China. Battery for battery 48v system. Have lived Offgrid for 6 years. Need help. Anything really (preferably a wiring...

Thanks so much for sharing this link. I bought two of these BMS and they’ve been sitting on the shelf for a few months stressing me out. I also received this link to the manuals (well I used the QR code on the actual unit). Anyway I can’t find a thing in English. All I want is a wiring diagram...