Kemo m102n double lead acid battery charger module kemo m102n p the kemo m102n double lead acid battery charger module is suitable for lead acid batteries from 6 to 24v dc the charger can be used to charge 2 batteries simultaneously but separately using a power source such as a car alternator solar power system wind turbine battery charger etc p p the charging current is distributed so that flat batteries are charged more than almost full ones this arrangement is ideal for camper