Texas-Mark
Solar Addict
- Joined
- Aug 4, 2021
- Messages
- 1,322
Second battery capacity tested at 102Ah. I guess I will do the freezer test tonight to see if it actually has low temp cutoff.
Last edited:
Does it appear to do any balancing of the cells, like their ad says it does? It says it "Support Balance Current".
Is the BMS supposed to balance the cells from here?
I don't like the looks of those cell readings @jimmu , but I'm not an expert.
It was cell 3 that alarmed me the most. That one is pretty far off the other 3 cells.They are high. But he did say it went into over-voltage alarm. They should settle down after it sits for a while. He said he used a "suitcase panel" to charge it, so it may not have had a charge controller. Or at least not a good one.
It was cell 3 that alarmed me the most. That one is pretty far off the other 3 cells.
Well, those numbers certainly look much better. Did you check what the voltages were when you first got it, before you charged it much?Its a Dokio suitcase panel with the cheap PWM charge controller. After day one the cells were pretty balanced. This is their current status after it sat overnight.
View attachment 112095