Battery backup

[Johnny Reefer]

Originally Posted by Dave C

A comparable APC UPS (which will kick in if the power dies) runs for $99 and can provide 200w for 22 minutes. ....

I want to do the power back-up thing too, but would prefer the automatic UPS as me not being there at the time may be an issue. Having said that....so if one were to run just one 20W MaxiJet 1200 powerhead off a UPS, am I correct to assume that that powerhead would run for .... 200W / 20W = 10. 10 x 22 minutes = 220 minutes, or 3 Hours and 40 minutes?

Thanx much,

[Dave C]

Yup, that's right. I could cut the time required for my setup too if I just hooked a couple Tunze 6100s in. They only burn 45w each and if I ran them at 1/2 power I could run two on each tank at a total draw of about 90w and have power for over half the day.

[Johnny Reefer]

Originally Posted by Dave C

Yup, that's right. .....

Cheers. Thanx. I'll be going the UPS route then, with a MaxiJet 1200 pointed to the surface. Outages here in Victoria proper don't last much and if one were to last as long as 3H 20M, well....I tried.

EDIT: Which 200W comparable APC UPS unit is it that you sussed out?

Thanx again,