The Genius G15000 12V/24V 15000mA Battery Charger has wicked features and is wicked smart! NOCO Genius Smart Battery Chargers are some of the safest and most advanced on the market. One of their best, the G15000 is designed to charge 12-volt and 24-volt lead-acid and lithium-ion batteries up to 400Ah. It can also effectively maintain automotive, marine, RV, lawn & garden and deep-cycle batteries. It charges 2x faster than ordinary chargers, can jump-start dead batteries, repair damaged batteries, power DC devices and is designed to use with micro-hybrid start-stop vehicles and CANBUS electrical systems.