Buyers beware!
I have 3 EG4 LifePower4 12v 400 Ah batteries. The two oldest are about 14 months old and their BMS reports in the EG4 BMSTools app (and everywhere else) that the designed capacity of the battery is 100 Ah and not the correct 400 Ah. This is despite the fact that they correctly report "Capacity Remaining" as a value between 0 and 400 Ah correctly. In essence this means that I might have 300 Ah remaining capacity on a battery that reports 100 Ah total designed capacity!!! The newer battery is about 4 months old now and reports everything correctly.
This is a problem since I am using a newer EG4LL ss the "master" on the battery comms bus that interconnects all the batteries together. The EG4LL as the master polls the other batteries and then reports the status of the bank to my Victron CerboGX via its CAN bus port. With the miss reported capacity from those two batteries the total SOC calculation is messed up which makes it impossible to do things like switch to shore power when the bank reaches 20% SOC.
Screen shots attached showing the BMS tools screens for each of these three LifePower4 batteries.
EG4 has not responded to my emails and Signature Solar doesn't know what to do about this since there are no firmware updates for the LifePower4 batteries.
If you are reading this and considering the purchase of LifePower4 batteries I would caution you against them if you plan to rely on BMS comms with your system being accurate.
If anyone has any solutions or thoughts to offer I am all ears!
Thank You,
Ken
I have 3 EG4 LifePower4 12v 400 Ah batteries. The two oldest are about 14 months old and their BMS reports in the EG4 BMSTools app (and everywhere else) that the designed capacity of the battery is 100 Ah and not the correct 400 Ah. This is despite the fact that they correctly report "Capacity Remaining" as a value between 0 and 400 Ah correctly. In essence this means that I might have 300 Ah remaining capacity on a battery that reports 100 Ah total designed capacity!!! The newer battery is about 4 months old now and reports everything correctly.
This is a problem since I am using a newer EG4LL ss the "master" on the battery comms bus that interconnects all the batteries together. The EG4LL as the master polls the other batteries and then reports the status of the bank to my Victron CerboGX via its CAN bus port. With the miss reported capacity from those two batteries the total SOC calculation is messed up which makes it impossible to do things like switch to shore power when the bank reaches 20% SOC.
Screen shots attached showing the BMS tools screens for each of these three LifePower4 batteries.
EG4 has not responded to my emails and Signature Solar doesn't know what to do about this since there are no firmware updates for the LifePower4 batteries.
If you are reading this and considering the purchase of LifePower4 batteries I would caution you against them if you plan to rely on BMS comms with your system being accurate.
If anyone has any solutions or thoughts to offer I am all ears!
Thank You,
Ken