EG4 › battery-to-inverter and battery-to-battery comm cable
New batteries fail to communicate with older bank
reported more than once
Symptoms
- Two new 314Ah Indoor batteries added alongside an existing FlexBoss21/GridBoss and three 280Ah Indoor batteries fail to communicate properly
- The same combination separately caps AC charging at just 31A with the new batteries at 20% SOC
- And adding a new LL battery as master to an existing three-battery bank makes the 6000XP show only the new battery's 100Ah capacity instead of the full 400Ah, leaving the bank unbalanced as it discharges
Alerts and codes
W000
The cause and the fix
Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.