I have a concern with the BMS parameter of these batteries. IMHO, these mentioned batteries in the title has the same BMS and firmware, based on their videos using PBMS Tools.

I have other brand of batteries using the same BMS as theirs, so parameters are the same.

Im satisfied because it really does balance the cells after a few cycles, around 20-30 cycles in my case.

My main concern is that, this BMS has 57.6v charging parameter wherein if you use loop communication with the inverter, it really does 57.6v. It also tapers current during balance usually at 56v.

However, it also floats at 57.6v. My other inverter is Deye with communication to the battery. My setting is grid charge to 100% regardless of sunlight.

So 100% is almost always guaranteed daily. Usually at 12noon, the batteries are already full. And my setting is to only discharge at 5PM onwards.

So, daily, it is floating at 57.6v for around 4-5 hours.

My concern is whether this is healthy or not for the cells. 3.6vpc is quite high for floating where 3.45vpc is full based on readings, and most of the other batteries recommend floating at 3.4vpc.

What I expect in loop communication should be to stop charging/floating if 57.6v is reached, as I understand LiFePO4 doesn't need floating.

Im quite tempted to switch to manual settings if this will mean prolonging battery life. On the other hand, loop communication is a plus with these batteries, its just that, Im quite hesitant with my observation.

Edited June 27, 20224 yr by power.esrl3
spelling

New to Lithium batteries and currently testing a BSLBATT 5KWh unit with similar BMS to the SOK and Jackiper (PACE BMS).

Once battery is full, the BMS should disable the charge function.

Can you confirm if the reported BMS voltage ( under Deye Li-BMS Page ) and actual inverter voltage (Voltage reading on first page when you press the battery icon) are different?