SUA1500I No signs of life.

[Anonymous user]

Ive been given an SUA1500I UPS with a dud battery, i plugged it in without the battery installed and there seems to be no signs of life, is this normal behaviour when theres no battery installed?

[Anonymous user]

Ive been given an SUA1500I UPS with a dud battery, i plugged it in without the battery installed and there seems to be no signs of life, is this normal behaviour when theres no battery installed?

[Anonymous user · Accepted solution]

Hello - yes that is normal for a possibly good UPS.

I just tested a working unit here by powering down our home theatre, disconnecting the AC, and pulling the battery isolate plug.

When I applied the AC, there was nothing, no clicks or flashes and the front panel buttons would not cause any response, so it could be a good unit - if not toss it in the recycling!