PulseTech 12V ERV SolarPulse 6-Watt Battery Charger Max Charge 16.5 DC volts, 365 mA, 100MA (2.4 Ah) daily cumulative for Key-Off Parasitic Loads Supplements vehicle and equipment charging system and cleans the battery using 22-28 kHz pulse frequ Military construction uses indestructible Lexon encapsulate for heavy duty durability. 17 foot cable Five Year Limited Warranty. Built tough for US Army. Prevents battery power loss on vehicles and equipment stored outside ? no matter how long they sit u