Battery Backup for Aquarium

Hey Guys,

Anyone build a Battery Backup for the aquarium using regular car battery (or similar/smaller - daisy chained SEALED types - as it will be in the house)?

If you can throw in a Solar charger to enable 'off grid' charging that would be awesome.

I am hoping to enable this as an emergency backup option for my tank (that includes all accessories - r. pump, skimmer, f. pumps, lights, heater etc. adding upto 300 Watts and/or 4 amp consumption) in case of power outage. The ratings I have indicated are shown as current consumption by my Apex system so excuse any errors as I'm not an electrical engineer.

I would like the emergency power to last a whole night and be charged back in the morning via solar panels (have 2 GoalZero Boulder 15 Solar panels - http://www.goalzero.com/p/20/boulder-15-solar-panel/) while still powering all the equipment.

Any design ideas?

Car battery? My feelings on this are that it will be for the "Advanced" DIYer :lol: very interesting though.

Made the updates to the original post above -

Hopefully someone here is the 'Advanced' DiY'er. If you can throw in a Solar charger to enable 'off grid' charging that would be awesome.

I am hoping to enable this as an emergency backup option for my tank.