PCPE says I have 69 minutes of battery time

[keithk_apc]

This was originally posted on APC forums on 3/13/2009

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Even with a worn-out battery, PCPE said I had 58 minutes of battery. I upgraded from version 2.1 to
version 2.2 - no change. Can I assume that "69 minutes" minus "58 minutes" gives me 11 actual minutes of battery time?

Model: Back-UPS ES 500
Serial number: JB0431011994
Firmware revision: 801.e5.D
Software version: PowerChute Personal Edition 2.2
RAM: 2 GB

[BillP · Accepted solution]

This reply was originally posted by Angela on APC forums on 3/13/2009

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hi,

while the UPS is "online," the runtime remaining is essentially an estimate. when the UPS actually goes to "on battery" mode, the value should be come accurate. sometimes the UPS may need a little calibration to adjust that time so that it is more accurate while online. i would put the UPS on battery to see what the runtime changes to and if possible, let it discharge completely with the software running, let it charge back up so that it calibrates a bit, and see what the runtime changes to.