Equipped with a specialized test switch that connects between the negative battery cable and the battery, this parasitic draw tester identifies electrical drains that cause battery depletion. It functions with a digital amp meter to measure parasitic amperage draw and remains in place during vehicle road testing to help locate excessive draws. This 8-ounce (226.8 g) tool is compatible with both side and top post batteries to facilitate troubleshooting across various vehicle types.

Equipped with a specialized test switch that connects between the negative battery cable and the battery, this parasitic draw tester identifies electrical drains that cause battery depletion. It functions with a digital amp meter to measure parasitic amperage draw and remains in place during vehicle road testing to help locate excessive draws. This 8-ounce (226.8 g) tool is compatible with both side and top post batteries to facilitate troubleshooting across various vehicle types.