12v-12ah battery, for electric 50-51 series 300 watt cooler. They are located on the left side near the vent. They may be side by side or atop one another in the cooler. The cooler should have a chain drive. (2 REQUIRED). Battery wires are not included. Batteries sold individually.
Not sure what you have? Click here (These are deep cycle batteries made for this application. Don’t be fooled by cheap batteries that are not designed for this type of application.)