The SMARTECH SBC-50 6, 12 V smart automotive battery charger is a compact but heavy-duty solution for charging all types of 6 and 12 V batteries, including WET, MF, EFB, GEL and AGM. It has a built-in microprocessor that makes charging faster, easier and safer to use. With its voltage tester and built-in safety features, such as spark proofing, protection for reverse polarity, short circuiting, overheating, overcharging and overcurrent, the SBC-50 provides an efficient and easy-to-use a battery charger that will always have your batteries in top performance condition.