I'm looking for a reality check here. I purchased a 600 VA UPS to power my wife's lift chair (recliner) during a power outage. Currently, the chair uses two 9V batteries as backup during a power outage but that's good enough for one cycle and then they are dead. I didn't put a lot of thought into the size of the unit as my thinking was 'how much power could a lift chair draw?'. After I got the unit, I did some looking and while information is limited, one site said a lift chair 45W to 90W. I was going to check it with my kill-a-watt meter but I can't find the damn thing.
I got the unit, charged it for a few days and then tried it. With it plugged into the wall socket the chair operates the same as always which it should. When I disconnect the UPS from the wall outlet simulating a power outage, the chair works but much slower and didn't seem at all happy on the up cycle. I was concerned I might be taxing the battery so I stopped the test to avoid potential damage.
Question for you all, does this seem reasonable? I would have thought a 600VA unit would have supplied this load better than this. I could have bought a lot of 9V batteries from Costco and accepted the fact I just had to replace them everytime.
I got the unit, charged it for a few days and then tried it. With it plugged into the wall socket the chair operates the same as always which it should. When I disconnect the UPS from the wall outlet simulating a power outage, the chair works but much slower and didn't seem at all happy on the up cycle. I was concerned I might be taxing the battery so I stopped the test to avoid potential damage.
Question for you all, does this seem reasonable? I would have thought a 600VA unit would have supplied this load better than this. I could have bought a lot of 9V batteries from Costco and accepted the fact I just had to replace them everytime.
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