[Puzzdre]

If I'm not wrong, plugging the laser printer on the UPS would suck up the battery very quickly, laser printers being high electrical consumers. Dunno about scanners...:shrug:

As for the pump, I don't really see any reason why not plug it to the UPS, considering we are talking about (mostly used) small wattage aquarium or pond pumps. I'm talking about small, 10 - 30 watts pumps, and they would not shorten the time of the battery drain for much (IMHO). If we are talking about high wattage pumps, one could plug it in, but take approx. 300 W psu for computer, plus (dunno how much, approx 50 W) for a monitor and add a pump = battery drained very quickly...

If I had a UPS, I would most certainly plug my pump to it too, cos' I wouldn't want to my comp stay on while pump is off, and no circulation and cooling...

Just my 2c...