TECMATE Duo Solar Charge Controller TM522-D - Techworks Performance Online

OptiMate Solar does it differently: the solar panel is where the sun is and the smart pulse charger is where the battery is, so you have immediate information on battery condition at hand right where it matters most, Converts the low power from the solar panel to high current pulses for more effective charging and maintenance of a 12V battery, 14′ of cable separates the charger from the panel, with SAE to SAE interconnection providing the option of extending further, Standard battery clip set, weatherproof charge controller case and battery lead included, Ideal for EFB, STD, AGM and gel 12V batteries from 2Ah-240Ah, The smart, 24-7 battery care solution powered by the sun, Can withstand temperatures down to -4?F, For lead-acid and lithium batteries, Low-volt start of 1V