I've had a few problems when following the suggestions here so hopefully someone can help.
The battery that I've been working on most is not connected to solar but only charging through the DC charger linked in posts above. That's the battery mentioned in the most recent few posts.
As previously mentioned, when charging at 55.2V and 5A, the one cell in the battery will go up to 3.75V and then the charger will shut off. The cell voltage will start coming down. However, it comes down EXTREMELY slowly. For example, after about 6 hours, it will be down to about 3.55V. And, while the DC charger remains connected, it will not resume charging. It will only resume charging if I reboot the battery. Then the cycle continues. However, the other cells are not getting higher in voltage over this time. Their voltages go up when using the DC charger, but by the time I have to reboot the battery, their voltages are actually about 2MV below where they started before the previous cycle of charge/discharge/reboot of the battery.
In the meantime, I also have two other batteries connected to solar through the LV6548. They've had access to a couple days of solid sunlight.
One of those (which has 100% SOH) has gotten back to 100% SOC. It will stay at 100% for sometime while the largest cell gets above 3.7V. Then the LV6548 will show no PV input (even though it is sunny - so obviously no longer charging) and the battery voltage in that max cell goes down much more rapidly compared to the other battery mentioned above. For example, it will decrease to 3.55V in about two minutes (as opposed to about 6 hours in the other battery). However, it will not resume charging (at least for that day) and the overall voltage of the battery stays at approx 54.3V. Please note that I had changed the float to 55.2V and the bulk to 57.6 for the LV6548 as suggested.
The other battery attached to the solar is one of the 80% SOH batteries. It actually went up to 56.67V when the max cell was at 3739MV (smallest cell was at 3441MV). It dropped down to 53.46V and 3365MV (max)/3336MV (min) after the OV alarm kicked in.
So my questions are:
What should I do about the first battery mentioned above? Do I need to look into finding a way to discharge that specific cell directly?
Any BMS settings I can change so that the first battery discharges faster or resumes charging while the max cell is still at a higher voltage (but not over voltage)?
Any settings/etc that I should change for the second battery mentioned above so that it pushes the voltage higher for the cells? And also so that it resumes charging at a higher voltage?
Considering how screwed up the BMS must have been based on how I've handled the batteries, is it possible that the 80% SOH on the second battery is actually not accurate and that it will go up to 100% Sorry if this is a stupid question
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If you need more data or settings info, please let me know and I'll see what I have written down from the past.
Thanks so much!