UPS battery backup question

[Reef Pilot]

Does your booster pack have a cig lighter type plug? If so, then all you need is the inverter to plug into that. Just leave your booster pack plugged into the wall all the time (should have an auto trickle charger adapter) and your tank pump plugged into the inverter. That should give you all the run time you need for just a small pump.

Yeah, might be a little unsightly, but it is the size of the battery that gives you the capacity (run time) that you need. Small might be nice, but they won't last very long. Not sure what your set up looks like, but maybe you can hide it a bit, out of the way?

Yes, a real UPS looks nicer, but the size you need would still be quite obtrusive. And overkill, like we said before.