- Joined
- 27 Jan 2008
- Messages
- 23,762
- Reaction score
- 2,679
- Location
- Llanfair Caereinion, Nr Welshpool
- Country
I found a 120 volt 60 Hz UPS I had been given, been sitting for at least 3 years, more likely 5 or more, the battery is dead, as expected after that time, I would guess around 7 AH, 12 volt, not sure if I have any use for a 120 volt 60 Hz power supply, but thought would try and charge up the battery.
As zero volts, my smart charger will not charge it without cheating, so put it in parallel with a 12 Ah power block, so the charger will work, seem to remember doing this in the past, and took 2 weeks before the battery responded, so what do you think are my changes.
As zero volts, my smart charger will not charge it without cheating, so put it in parallel with a 12 Ah power block, so the charger will work, seem to remember doing this in the past, and took 2 weeks before the battery responded, so what do you think are my changes.