Sungrow SH10RS - Charge Management

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3.3.1 Charge Management
Backup Charge Management
The emergency charge management function is to protect the battery from the damage
caused by long time excessive discharge. The inverter cannot respond to discharge com-
mand during emergency charge. The following tables describe the emergency charge condi-
tions for different types of batteries.
table 3-3 Backup Charge Management for Li-ion Battery
Status Conditions
Trigger
Either of the following conditions is met:
• SOC ≤ (Min. SOC) – 3% (valid only when the Min. SOC is ≥ 3 %).
• A battery under-voltage warning is triggered.
• An emergency charge command is reported to the inverter.
Finish
All the following conditions are met:
• SOC ≥ (Min. SOC) – 1% (valid only when the Min. SOC is ≥ 3 %).
• The battery under-voltage warning is cleared.
• The emergency charge command reported to the inverter is cleared.
table 3-4 Default SOC Conditions for Li-ion Battery Backup Charge
Type Trigger SOC Finishing SOC
SUNGROW SOC ≤ 2 % SOC ≥ 4 %
LG Chem SOC ≤ 5 % SOC ≥ 7 %
BYD (Battery-Box HV)
SOC ≤ 7 % SOC ≥ 9 %
BYD (Battery-Box Premium HVM /
HVS)
SOC ≤ 2 % SOC ≥ 4 %
Pylontech SOC ≤ 5 % SOC ≥ 7 %
table 3-5 Default SOC Conditions for Li-ion Battery Backup Charge
Type Trigger SOC Finishing SOC
SUNGROW SOC ≤ 2 % SOC ≥ 4 %
BYD (Battery-Box Premium HVM /
HVS)
SOC ≤ 2 % SOC ≥ 4 %
table 3-6 Default SOC Conditions for Li-ion Battery Backup Charge
Type Trigger SOC Finishing SOC
SUNGROW SOC ≤ 3 % SOC ≥ 10 %
User Manual 3 Function Description