Q: ES does not start up with ONLY battery connected.
A: Please make sure the voltage of battery is higher than 48V, otherwise battery cannot start ES up. If the battery voltage is ok but the problem persists, please contact GoodWe local technical service center.
Q: ES does not start up with ONLY PV connected.
A: Please make sure the voltage of PV is higher than 125V. If everything is ok but problem persists, please contact GoodWe local technical service center.
Q: There is a large power fluctuation on battery charge/discharge.
A: Check the following items
1.Check if there is a fluctuation on load power;
2.Check if there is a fluctuation on PV power on GoodWe Portal.
If everything is ok but the problem persists, please contact GoodWe local technical service center.
Q: Battery configuration
A:1. Lithium battery must connect to BMS communication;2.Nominal voltage for Lead-acid battery is 48V, max charge voltage 60V;3.For example, serial connection of 4*12V 100Ah lead-acid battery, the capacity will still be 100Ah.
Q: Battery cannot charge to 100%
A: LG battery will stop charging at SOC 95%.
B: Battery will also stop charging when battery voltage reaches charge voltage set on EzManager APP
Q: SOC changed after restart the system.
A: When restarting the system, SOC only depends on the battery voltage. After a whole charging and discharging process, SOC will be accurate.
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