Convert your older TecMate charger or British charger brand to connect to the OptiMATE (or other SAE) permanent battery lead. Available with weather-protected sleeve and cap. Premium cable designed by TecMate. Three-year limited warranty. Detailed Specifications: Length: 6" / 15 cm. KET/TM/British 2-pin connector converts to an industry standard SAE 2-pin connector. Cable maximum rating: 5 Amp. -40°C / -40°F very low temperature use.