Its not charging and cut off immediatly when turning on
crwdns2934249:0crwdne2934249:0:
Haii,my v guard ups doest charging .if the ups is plugged in there is no voltage seems to the battery side.
And my ups is immediatly shut down when it is turning on.i dont have 12 v battery so i connect it with 12 v adapter .if is that the problem.
I know the shutting down is done by a relay swith
How i solve it