DIYrich
Solar Wizard
Once you know the cutoff, drop charge amps to 10 amps. By charging right under the bmd cutoff, the high cell will stay under 3.65v
What do you think is going on with this bank?
- Thread starter Bleedingblue
- Start date
Bleedingblue
Solar Enthusiast
- Joined
- May 12, 2020
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- 564
Yes. That's how I got the screenshots showing the bms voltages
Bleedingblue
Solar Enthusiast
- Joined
- May 12, 2020
- Messages
- 564
Well this is what I did. Approx 2 hrs ago I checked the bank and it was around 83% and I have the discharge cut off. I upped my settings to 3.64 cell OVP and 3.639 cell OVPR
I put my charger on it set at 5 amps charging. 2 hrs later I check on it.
As you see I have multiple cells at 3.85
Supposed to shut off?
Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
That's Borked, some cells are way too high. 12 isn't registering at all and some are terribly low in comparison.
This pack needs a tear down & redo from the start ...
This pack needs a tear down & redo from the start ...
Partimewages
Solar Addict
Something not right with the BMS.
Bleedingblue
Solar Enthusiast
- Joined
- May 12, 2020
- Messages
- 564
Like taking everything off and charging each cell to 3.64?
Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
Unfortunately, I think so. There are so many flags with cell voltages, weird readings, the missing #12 on BMS...
As for that BMS not reporting #12 makes me wonder what that's about. The cause being wire, terminal or BMS ??
A cell voltage being missing may be a blown resistor on the BMS board.
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