12V batteries in Parallel Configurations

It may be advisable to operate the inverter from a bank of 12 Volt batteries of the same type in a "parallel" configuration.

Two such batteries will generate twice the amp/hours of a single battery; three batteries will generate three times the amp/hours, and so on. This will lengthen the time before your batteries will need to be recharged, giving you a longer time that you can run your appliances.