14 April 2026

UPS Batteries

The main UPS is a CyberPower 1,500w unit I bought from Wal Mart right before Milton came through in October 2024.

I replaced the APC 600w unit in the garage with a CyberPower 425w in September 2025.

I bought new batteries for the dead APC 1,500w in September 2025, it's in storage.  I don't remember when I purchased it originally, but this might be the second set of batteries.

I replaced the battery in the dead APC 600w (originally purchased in September 2020) in September 2025 and it was in storage until tonight when I finally admitted the Amazon Basics 400w UPS from February 2023 wasn't surviving even minor power interruptions.

This is me putting this information in one place so I can, hopefully, find it later.

Posted by Angus McThag at 01:29
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1 comment:

  1. Terrapod14 April, 2026 07:32

    I usually get about 4 to 5 years of life from my UPS units. At last count there are 5 of them operating here. One resides in the garage which is below freezing 5 months of 12. The rest are in human occupied spaces. The cold does not seem to bother the lead acid battery much so I would suspect heat to be more the culprit in your case.
    The one in the garage is for the underground wire dog fence. Can't have the terrier visiting the entire neighborhood when there is a power outage ;-)

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