Everstart 6811a Smart Charger Manual Direct

: Reverse polarity protection, overcharge prevention, short-circuit protection Safety Warnings and Precautions

The microprocessor does the rest.

Attach the negative (-) clamp to the negative battery terminal or a clean, unpainted metal part of the vehicle's chassis. everstart 6811a smart charger manual

Hope this helps anyone struggling with their unit! : Reverse polarity protection