With this automatic small charger, you can charge all 6 / 12 V lead-acid batteries automatically. When the connected battery reaches the final charging voltage during charging, the charging current is reduced, protecting the battery from overcharging. Due to the fully electronic voltage and current limitation, a connected battery is always maintained at optimal charge while preventing dangerous overcharging and the resulting gas formation. Modern switch-mode power supply technology, short-circuit and reverse polarity protection, constant final charging voltage, automatic charging current adjustment, no charging with a reversed connected battery, charging occurs only with a correctly connected battery. Visual indicators for power, charging, and reverse polarity, electronic short-circuit and reverse polarity protection, overcharge protection. Operating voltage 220-240 VAC, final charging voltage 6.9 V / 13.8 V, max. charging current 0.8 Amperes, dimensions 85 x 65 x 35 mm.