48-59-1204 M12 4 port battery charger

The 48-59-1204 is a four port sequential battery charger for M12 batteries manufactured by Milwaukee.

This charge can charge up to four M12 batteries in sequence. The means that only one battery is charged at a time. not multiple at once.

The charging order is done from left to right. To charge a specific battery without re-ordering them the skip button on top can be pressed to select another battery to charge.

Exterior

The charger has a red plastic body with a black plastic bottom. Four battery receptacles are placed on the top side next to each other.

Behind the receptacles there is a slope with vertical ventilation slits. Above each receptacle is a charge indicator consisting out of a red and green LED.

In the middle is a black skip button. Behind that is a legend explaining the status indicators:

• Solid red: battery is charging.
• Solid green: battery is charger.
• Slow flashing red: battery is waiting to be charged when another one is done
• Fast flashing red: battery is too hot or cold, will resume charging when temperature normalizes.
• Flashing red and green: battery is faulty or damaged and will not be charged.