Cap weather replacement has two circuits: one 7. 5a circuit for standard maintenance charging and one 15a circuit for higher-powered accessory requirements such as heated clothing the same features as the standard dual function lead, plus it adapts any accessory requiring an extended reach female cigarette-type plug accessory has female cigarette socket end, 1' 6" l 5' l dc charging/power lead extension lets you extend your standard sae dc charging or power lead can combine cables to create 10', 15' l or longer extensions as needed avoid the bulk of a 25' extension cable if not needed replaces lost or broken off standard sae two-pin weather caps