Hi all,
if this a wrong forum to post this question, let me know, but it's the closest one to the subject matter that I found.
We have a UPS W1920, Dell model P/N H928N, it has been off for a while. When we have tried to use it again, once pressed the power button (On/Off button), nothing happens, it's dead.
The only answer that I've found to such problem is on Dell Line-Interactive Rack UPS
1000W, 1920/1500W, and 2700/2300W - User Guide, where it's stated:
Alarm or Condition: The UPS does not start. (The LCD is off.)
Possible cause: Power is not connected.
Action: Check the power cord connections. Also ensure that the battery is plugged in.
The power cord is connected and it supplies power, we have accessed the "internal battery connector" and we can check that it supplies 24 Volts to the batteries. Obviously the batteries are dead, all them connected supply through the "battery connector" around 72 Volts, and individually some ones are empty, no volts.
The question that I'm posting is if there is any kind of technical guide or similar to get more insight on the UPS to try to reborn it. Or if somebody can point me if with new batteries it would restart (the UPS remains shutdown with no alert when the batteries are totally useless).
Thanks a lot for your help.