Chapter 9 : Maintenance - Delta RT Series User Manual

It is recommended that you follow the following checklist to ensure the reliability
and efficiency of the Delta lithium-ion battery pack.
1. Check the State of Capacity every week via the UPS's LCD.
2. Check the State of Health (SOH) every 3 months (i.e. perform deep
discharge test). If the SOH is lower than 30%, please replace the lithium-ion
battery module(s).
3. Check the air flow every month.

Chapter 9 : Maintenance

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