this post was submitted on 28 May 2026
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I have 2 UPS' that have expired batteries. The manufacturers want crazy amounts of money to replace them, and a friend recommended I look online to see if I can get them elsewhere. However, the sites all seem so sketchy. Have any of you had good luck with third party battery sites? Obviously a bit nervous about safety.

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[–] Mihies@programming.dev 7 points 3 weeks ago (1 children)

Depends on the model, but many, especially cheaper ones, have standard lead batteries which you can buy at motor or electronics shops.

[–] Zwuzelmaus@feddit.org 3 points 3 weeks ago (1 children)

But do not use the "motor" ones for a UPS.

[–] Mihies@programming.dev 3 points 3 weeks ago (1 children)

If their size and capacity is equal or similar, why not?

[–] Zwuzelmaus@feddit.org 1 points 3 weeks ago

You should use the AGM variant (if lead batteries at all)