Why Does the Smart-UPS Ultra Battery Cycle Between 94% and 100% State of Charge?
Issue:
The battery state of charge of certain Smart-UPS Ultra models may fluctuate between 94% and 100% during normal operation.
Product Line:
Smart-UPS Ultra 5-10kW
- Models; SRTL5KRM2UI, SRTL5KRM2UT, SRTL8KRM4UI, SRTL8KRM4UT, SRTL10KRM4UI, SRTL10KRM4UT
Smart-UPS Modular Ultra
- All models starting with the prefix SRYL
Answer:
This behavior is normal and expected.
The UPS uses a Li-ion battery charging strategy designed to protect battery health. Once the battery reaches 100% state of charge (SoC), the charger is intentionally turned off.
During normal operation, the battery will then discharge slightly. When the SoC drops to approximately 94%, the charger automatically turns back on to recharge the battery.
As a result, the reported battery SoC may cycle between ~94% and 100%. This is part of normal operation and does not indicate a fault or defect.
Udgivet til: Schneider Electric Danmark
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