How to clear the REPLACEBATT state from APC UPS after hot-swapping the battery

Posted by Hubert Kario on Server Fault See other posts from Server Fault or by Hubert Kario
Published on 2010-10-21T17:33:19Z Indexed on 2012/03/30 23:32 UTC
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I replaced a battery in APC SmartUPS by hot-swapping. While the swap was all right and didn't disturb connected computers, the "Battery failed" LED on the front face kept glowing.

I tried to use apctest from apcups package. Turned off the daemon and run self test (first changing BATTDATE in EEPROM). The test run fine but didn't clear the REPLACEBATT status or the glowing LED.

How to clear the failed battery state without powering the UPS and connected equipment down?

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