Blue Jinn
Well-known member
Hello,
I acquired a 5amp UPS, (meaning cheap.)
I have a sump pump that draws 10 amps. (Has a tank associated with it, so pumping is not constant. ) Figure in a really bad storm if rain comes and power goes, it would be nice to have a battery on the pump.
I'm going to try and get a service manual from the manufacturer for the UPS, (Ferrups FE500VA) but conceptually, assuming the transformer can handle the load, is there any reason I can't increase the current rating by e.g. adding pass transistors, and a higher rated battery? Or conversely a higher rated transformer and battery? I'm venturing into uncharted waters for myself here so forgive me if I'm asking a completely clueless question. (I'm fairly certain the UPS outputs a reasonably close sine wave. ) I've come across simple enough inverters that would likely work, except they are all square wave output.
I acquired a 5amp UPS, (meaning cheap.)
I have a sump pump that draws 10 amps. (Has a tank associated with it, so pumping is not constant. ) Figure in a really bad storm if rain comes and power goes, it would be nice to have a battery on the pump.
I'm going to try and get a service manual from the manufacturer for the UPS, (Ferrups FE500VA) but conceptually, assuming the transformer can handle the load, is there any reason I can't increase the current rating by e.g. adding pass transistors, and a higher rated battery? Or conversely a higher rated transformer and battery? I'm venturing into uncharted waters for myself here so forgive me if I'm asking a completely clueless question. (I'm fairly certain the UPS outputs a reasonably close sine wave. ) I've come across simple enough inverters that would likely work, except they are all square wave output.