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.
I usually check ebay when i need electronics batteries, but you have a chance of a seller selling knock off batteries that as you said, could be sketchy. I’ve personally never had an issue, but YMMV.
https://www.ebay.com/sch/i.html?_nkw=ups+battery