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WARNING

To reduce the risk of injury or 

explosion, never burn or incinerate a 

battery pack even if it is damaged, dead or completely 

discharged. When burned, toxic fumes and materials 

are created.

Disposing of 

MILWAUKEE

®

 Li-Ion Battery

MILWAUKEE

®

 Li-Ion batteries are more environmentally 

friendly than some other types of power tool batteries. 

Always dispose of your battery according to federal, state 

and local regulations. Contact a recycling agency in your 

area for recycling locations.

Even discharged batteries contain some energy. Before 

disposing, use electrical tape to cover the terminals to 

prevent the battery from shorting, which could cause a fire 

or explosion.

RBRC Battery Recycling Seals

The RBRC™ Battery Recycling Seals (see "Symbology") 

on your batteries indicate that 

MILWAUKEE

®

 has 

arranged for the recycling of that battery with the 

Rechargeable Battery Recycling Corporation (RBRC). At 

the end of your battery's useful life, return the battery to a 

MILWAUKEE

®

 Branch Office/Service Centre or the 

participating retailer nearest you. For more information, 

visit the RBRC web site at www.rbrc.org.

CHARGER

WARNING

Charge only REDLITHIUM

®

 USB 

batteries in the REDLITHIUM

®

 USB 

charger. Other types of batteries may cause personal 

injury and damage.

How to Charge the Battery Pack

1. Plug your USB cable into a power source such as an AC 

wall adaptor, computer or car port.

2. Insert the micro USB into the micro USB port.

3. Twist the charger cap and remove the cap.

4. Align the battery arrow with the charger arrow and insert 

the battery completely.

5. Line up the arrows on the cap with the battery holder 

and twist the cap to lock.

6. The indicator light will display:

Red Solid: Charging, 0-79% charged

Green Flashing: Charging, 80-99% charged

Green Solid: 100% Charged

Red/Green Flashing: Damaged or Faulty Battery

If the light indicator flashes red and green, check that 

the battery is fully seated into the bay. Remove the 

battery and reinsert. If the light continues to flash red 

and green, the battery may be extremely hot or cold, or 

wet. Allow the battery to cool down, warm up, or dry out 

and then reinsert. If the problem persists, contact a 

MILWAUKEE

®

 service facility.

Maintenance and Storage

Store your charger in a cool, dry place.

As a general practice, it is best to unplug battery 

chargers and remove batteries when not in use. No 

battery damage will occur, however, if the charger 

and battery are left plugged in.

Cleaning

Clean out dust and debris from charger vents and 

electrical contacts by blowing with compressed air. 

Use only mild soap and a damp cloth to clean the 

battery and charger, keeping away from all electrical 

contacts. Certain cleaning agents and solvents are 

harmful to plastics and other insulated parts. Some of 

these include gasoline, turpentine, lacquer thinner, 

paint thinner, chlorinated cleaning solvents, ammonia 

and household detergents containing ammonia. 

Never use flammable or combustible solvents around 

batteries, charger, or tools.

WARNING

To reduce the risk of injury, always 

unplug the charger and remove the 

battery from the charger before performing any 

maintenance. The charger and battery have no 

internal serviceable parts. Never disassemble the 

battery or charger.

WARNING

To reduce the risk of injury and 

damage, never immerse your 

battery or charger in liquid or allow a liquid to 

flow inside them.

Using the USB A Port

The USB A port can be used to charge a cell phone, 

or other personal device that is in compliance with the 

USB Standard. To turn on the USB, press the battery 

button. The USB A port will remain on until it fully 

charges the device before turning off automatically.

NOTE: 

USB A Port (for device charging) is shut down 

when the battery is charging.

Maintenance and Storage

Do not expose your battery or cordless tools to water or 

rain, or allow them to get wet. This could damage the tool 

and battery. Do not use oil or solvents to clean or lubricate 

your battery. The plastic casing will become brittle and 

crack, causing a risk of injury.

Store batteries at room temperature away from moisture. 

Do not store in damp locations where corrosion of 

terminals may occur. As with other battery types, 

permanent capacity loss can result if the pack is stored for 

long periods of time at high temperatures (over 50

o

C). 

MILWAUKEE

®

 Li-Ion batteries maintain their charge 

during storage longer than other battery types. After about 

a year of storage, charge the battery as normal.

2

Fuel Gauge

When the charger is unplugged and a battery is 

inserted, push the battery button to illuminate 

indicator light. This will display the current battery 

charge:

Red Flashing: 0-3% remaining

Red Solid: 3-10% remaining

Yellow Solid: 11-49% remaining

Green Solid: 50-100% remaining

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