Sparktastic
New Member
Hi guys,
I suspect this might be a bug in the MPP firmware??
I have a PIP GEW 3024 AIO.
The system is completely off grid and has the following attributes:
Battery - 8 cell x 300ah Lifpo4
BMS - Daly 8 cell
Solar - 5 x 415w panels in series.
Inverter battery profile - 'User' (as all of the LI profiles seem to throw a BMS comms error, if selected).
Bulk charge voltage 28.8v
Float charge voltage 27v
The problem I'm having is that even after discharging down to 50% SOC overnight, the inverter will only charge up to the float voltage the next day. Clearly, this is not taking the cells up to 100% SOC as the charge current drops to back to almost nothing, once the battery reaches 27V
Can anyone shed any light on why these inverters do not activate Bulk charge, before switching to float?
To get around the issue (somewhat), I've increased the float voltage to 27.8 (3.475v per cell) which seems to bring the batteries up to close to 100%
I suspect this might be a bug in the MPP firmware??
I have a PIP GEW 3024 AIO.
The system is completely off grid and has the following attributes:
Battery - 8 cell x 300ah Lifpo4
BMS - Daly 8 cell
Solar - 5 x 415w panels in series.
Inverter battery profile - 'User' (as all of the LI profiles seem to throw a BMS comms error, if selected).
Bulk charge voltage 28.8v
Float charge voltage 27v
The problem I'm having is that even after discharging down to 50% SOC overnight, the inverter will only charge up to the float voltage the next day. Clearly, this is not taking the cells up to 100% SOC as the charge current drops to back to almost nothing, once the battery reaches 27V
Can anyone shed any light on why these inverters do not activate Bulk charge, before switching to float?
To get around the issue (somewhat), I've increased the float voltage to 27.8 (3.475v per cell) which seems to bring the batteries up to close to 100%
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