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[mr.wilson]

Originally Posted by freddy

Bought a noma 400 from canadian tire.Power was out for 6 hours,it ran my 500 aquaclear,skimmer,heater and one powerhead,no problems,one thing I like about battery backup is that when the power goes out,it dosen't skip a beat everything keeps running as of the power never went out,well worth the money.

Yeah, UPS (uninterrupted power source) systems have that definite advantage. You can always daisy chain more deep charge batteries to it for extended outages. Once you get into days, rather than hours you have bigger problems than your tank crashing