【Visualized Charging with LCD Screen】The intelligent digital LCD screen clearly and visibly displays the charging status, charging percentage and voltage, charging current, etc. Always know how your battery charging is working. 【Pulse Repair to Restore Your Battery】Built-in advanced battery REPAIR technology, helps to restore the old/idle batteries lost performance and extend battery life. 7-stage charging program (desulfurization, trickle charging, constant current charging, constant voltage charging, battery current detection, compensation charging, Floating charging).