# Figure out what battery and inverter you need

by matt on April 24, 2010Q: Is there an equation to determine what size and voltage a battery needs to be to power a 240V appliance via an inverter and how long it will last? For example a 24V battery inverted to 240V will power a 1000W appliance for 1 hr but a 1500W appliance for 15min.

A: We suggest you check out inverter battery sizing pdf over at batteryweb.com. It covers all the math you are looking for to figure out what battery and inverter combo you need to run your different appliances.

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