Delacroix231
Newbie level 2
When I plug my ups apc es500 on the outlet it works perfectly fine but when a power outage occurs or if I unplug my UPS in the outlet my computer will turn off and a continous beeping sound occurs without the green light. I tested the battery using multimeter and it works perfectly fine the indicator shows 12volts to 13 volts.. Please help me with this problem. Thanks in advance