Huawei iSitePower-M MAP05A1 - Storage with Low SOC; Battery SOH Check

Step 2 Set the AC input switch to ON.
Step 3 Observe the annular strip light. If all green lights are steady on, battery charging is
complete.
Step 4 After the charging is complete, turn
o the AC input circuit breaker of the
iSitePower-M and then the DC SWITCH. Hold down the manual ON/OFF switch
for 5s to shut down the battery module. If other batteries need to be charged,
repeat the preceding steps.
----End
12.5 Storage with Low SOC
After the product is powered
o, static power consumption and self-discharge loss
may occur in internal modules. Therefore, charge batteries in a timely manner and
do not store the product in low SOC. Otherwise, the product may be damaged due
to overdischarge, and battery modules need to be replaced.
Storage in low SOC may occur in the following scenarios:
● The DC SWITCH on the power control module is OFF.
● The power cables or signal cables are not connected.
● The batteries cannot be charged due to a system fault after discharge.
● The batteries cannot be charged due to incorrect
congurations in the system.
● The batteries cannot be charged due to no PV input and long-term mains
failure.
Regardless of scenarios, the batteries must be charged within the longest interval
corresponding to the SOC when the batteries are powered o. If the batteries are
not charged within the
specied interval, they may be damaged due to
overdischarge.
Power-O
SOC Before Storage Maximum Charge Interval
SOC > 5% 30 days
0% ≤ SOC < 5% 7 days
NO TE
When the battery SOC decreases to 0%, charge the batteries within seven days. Permanent
battery faults caused by delayed charge due to customer reasons are beyond the warranty
scope.
12.6 Battery SOH Check
● To ensure safe and reliable operation, the system checks and calibrates the
state of health (SOH) of batteries. If the SOH is low, safety risks may exist. In
this case, the ESS stops working and generates an alarm. During battery
operation, if the SOH calculation conditions are met, the SOH is calibrated
iSitePower-M (MAP05A1, MAB05B1)
User Manual 12 System Maintenance
Issue 06 (2023-04-24) Copyright © Huawei Digital Power Technologies Co., Ltd. 196