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Low DC Voltages of APC UPS SUA2200i

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

tanveer_apc
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Low DC Voltages of APC UPS SUA2200i

This was originally posted on APC forums on 2/8/2011


I have a SUA2200i. I have observed a problem in this unit. Backup time of this UPS has decreased. I have changed new batteries of 17 Ah but backup is still short. When I check the batteries voltages after charging 8 Hours thats are only 51.0 Volts. While in Hyper Terminal Window Battery Voltage are 55.

Tell Me how can I increase battery Voltages

Tanveer Ahmed