Hey guys, my brother recently bought a bunch of these Uninterruptable Power Supplies (UPSs) and I'd thought I'd share on the awesome.
They're basically fairly large batteries, but they also double as power bars too! They are a little chunky (maybe stacking 4 power bars together) but that's only because of the battery. The battery I've got apparently can last 30 minutes while using something big like a computer.
What I've done is after I've set all my stuff up, I've plugged the heaters into the battery section, so if my power goes out, my heaters will still be keeping my betta's nice and warm for a few hours until the power comes back on :D
I just thought I would mention this considering it's summer and storms will kick the power out and such.