Milwaukee 48-59-1812 M12 or M18 18V and 12V Multi Voltage Lithium Ion Battery Charger w/Onboard Fuel Gauge

DUAL CHARGING: This charger can tackle both 18 and 12 volt Milwaukee batteries holding one of each in the unit at the same time
SEQUENTIAL CHARGING: Do not worry about managing charge cycles This will take care of your batteries one at a time devoting full charging power to each one
FAST ACTING: Compact batteries can be fully charged in as little as 30 minutes while extended life batteries can be charged in as little as a single hour
INDICATOR LIGHTS let you know whether a battery is charging fully charged and whether it needs maintenance or not