- #1
c20h40
- 10
- 0
can anyone please help me, i want to know that whether 12v DC from a battery is same as 12v DC from a transformer ( after a 4 diode bridge has been fixed to it )... please help, because i want to expeiment something, i removed the 12v battery of my UPS and put in its place a 12v transformer, but the ups signals it as weak current and the inverter doesn't turn on, even though the battery was 22Ah while the transformer is 30Ah , please tell me why doesn't the ups detect the transformer DC current.