DS18 INF-C4A 6V/12V Portable Automatic Smart Lithium and AGM Car Battery Charger & Maintainer 4A With DS18’s INF-C4A, it’s easy to maintain and charge your battery to ensure it will operate at its MAX, delivering uninterrupted power to your sound system and elevating your experience to new heights. Equipped with advanced charging and maintaining capabilities, the INF-C4A is designed to power a wide range of battery types; including Lead-Acid, Wet, Gel, AGM, and Lithium batteries using LiFePO4 cells. No matter the size and type of your battery, the INF-C4A effortlessly delivers a maximum output current of 4A, ensuring an efficient charging process