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Stinger Car Audio Battery Isolators for Running Multiple Batteries

A battery relay isolator is an absolute must have if adding 2 or more batteries! We have Stinger Battery Isolators in a variety of different styles from single post to four post models available in host of different amperage ratings. The purpose of a battery isolator is to only connect them together when they are being charged or in use. When at the vehicle is off the batteries are disconnected via the relay to prevent them discharging each other.

Stinger Battery Relay Isolators