Battery Backup

rdnyva · 09/26/2007, 07:46 AM

OK, so we had some bad storms last week and the power went out for about an hour. No biggie but an hour felt like an eternity when I was staring at my tank at midnight. So that got me thinking about a backup system. I do have a generator but that's for a real emergency. Ideally I would like to keep my return pump going but it's a Sequence Wahoo and draws 265 watts. So then I thought about just keeping the Tunze Streams going to maintain tank circulation. They draw only 38 watts between the 2 of them. What kind of battery backup would I need to keep them running for say 6 hours or so. I have seen backupswith ratings of 350VA and 875VA but don't know whatthis means. Is there a formula to figure out out how long a 350VA battery backup will run 38 watts of power?

09/26/2007, 07:46 AM	#1
rdnyva Registered Member Join Date: Oct 2002 Location: Central Florida Posts: 1,106	Battery Backup OK, so we had some bad storms last week and the power went out for about an hour. No biggie but an hour felt like an eternity when I was staring at my tank at midnight. So that got me thinking about a backup system. I do have a generator but that's for a real emergency. Ideally I would like to keep my return pump going but it's a Sequence Wahoo and draws 265 watts. So then I thought about just keeping the Tunze Streams going to maintain tank circulation. They draw only 38 watts between the 2 of them. What kind of battery backup would I need to keep them running for say 6 hours or so. I have seen backupswith ratings of 350VA and 875VA but don't know whatthis means. Is there a formula to figure out out how long a 350VA battery backup will run 38 watts of power? __________________ 150 gal mixed reef Apex Lite 2 - MP40 QD Vertex Omega 180i Skimmer ReefBreeders Photon 50 V2