Yuasa yu power intelligent battery charger ypc4a24 yuasa ypc4a24 p the yuasa yu power intelligent battery charger utilises multi stage proportional timing technology to ensure safe and sufficient charging of lead acid batteries p p the use of proportional timing during the bulk charging mode ensures the best balance of maximum state of charge without damaging the battery before switching to the float charging mode once in float charging mode the charger will charge the battery and mai