Replace UPS Battery with car battery

[masedhom]

can I replace my UPS battery 12V/7 A with my old car battery 12V/410A ?? as i can't find the same specs of my old battery in stores in my place .

 

[kanewolf]

I would not recommend it. The charging circuit was not designed to support that battery. The AC generation circuit was not designed to support the runtime a battery that large could support. If you like fires, then that is one way to start one.

 

[Alabalcho]

Some (old) car batteries can release gas when charged, and your UPS (and the room you're into) won't like it for prolonged time.