Battery backup that will last a long time?

[Golden State Reefer]

I have a couple of tanks in an office that's far from home. I want to setup a battery backup that will keep my aquariums safe in the event of a power outage that lasts more than a few hours.

It's a commercial office building with no operable windows. A gas powered generator isn't an option since there's nowhere to vent it. It seems the APC battery backups are only going to work very short term. Are there any options for this kind of situation?

 

[Techie_]

What would you be operating? Just life support or lights, skimmers and reactors?

 

[Rick.45cal]

Deep cycle marine batteries are your best bet. Hopefully someone will be along that has a set up and can describe the best way to do it.

 

[Elementalj]

Deep cycle marine batteries are your best bet. Hopefully someone will be along that has a set up and can describe the best way to do it.

Skip the optima! [emoji6]

 

[Golden State Reefer]

What would you be operating? Just life support or lights, skimmers and reactors?

I'd like to operate the Vector return pump, a single WAV pump, heater & Chiller. The office building has no AC on the weekends and it can get in the mid to high 80s all day in there.

 

[jdl513]

If there is a cost effective way to run all of that without a gas powered generator I would like to know too. Standard battery backup options can't maintain heat/cold due to power needs.