Back up battery

[Crystal08]

Can anyone recommend a good backup battery for a 36 gallon aquarium that’s not too expensive. Not sure which one to get. Then one I have isn’t working even with a new battery installed.

 

[EricR]

You should probably list the equipment you're hoping to power and for how long.
Heaters are usually a huge problem for "battery" backups.
DC pumps are easier.

 

[Crystal08]

You should probably list the equipment you're hoping to power and for how long.
Heaters are usually a huge problem for "battery" backups.
DC pumps are easier.

I’m trying to run the light, heater and pump for. 36 gallon tank

 

[MrGisonni]

Works with most DC pumps

 

[robotrash]

You'll also want to list more specifically which heater, pump, light you have. Wattages make calculating how long a backup battery will hold you over much easier!

 

[The_Paradox]

If you’re looking to keep a heater up in a cold house for more than an hour you need to be looking at generators. A small 1kVa pure sine generator weighs less than 40 pounds and can be had for under 700USD.

 

[dwest]

I’m trying to run the light, heater and pump for. 36 gallon tank

Running a pump is by far the most important. And you really only need motion within the tank.