Milwaukee M12B, M18BX Milwaukee LITHIUM-ION Battery Packs, Fuel Gauge, Battery Pack Protection

MILWAUKEE LITHIUM-ION BATTERY PACKS

18 V

12V AND 18 V

Fuel Gauge

Use the Fuel Gauge to determine the battery pack's remaining run time. Press the Fuel Gauge button to display the lights. The Fuel Gauge will light up for

2-3 seconds. When less than 10% of charge is left, 1 light on the fuel gauge will flash slowly.

Approximate Run	78-100%
Time Remaining
	55-77%
33-54%
10-32%
Less than 10% if bottom light is flashing

NOTE: If the Fuel Gauge doesn't appear to be working, place the battery pack on the charger and charge as needed.

Compared to NiCd battery pack types, MILWAUKEE Lithium-Ion battery packs deliver fade-free power for their entire run time.The tool will not experience a slow, gradual loss of power as you work.To signal the end of discharge, 1 light on the fuel gauge will flash quickly for 2-3 seconds and the tool will not run. Charge the battery pack.

NOTE: Immediately after using the battery pack, the Fuel Gauge may display a lower charge than it will if checked a few minutes later . The battery cells "recover" some of their charge after resting.

Battery Pack Protection

To protect itself from damage and extend its life, the battery pack’s intelligent circuit monitors current draw and temperature. In extremely high torque, binding, stalling, and short circuit situations, the battery pack will turn OFF the tool if the current draw becomes too high.All the fuel gauge lights will flash. Release the trigger and restart.

Under extreme circumstances, the internal tem- perature of the battery could become too high. If this happens, the fuel gauge lights will flash in an alternating pattern and the tool will not run. Allow the battery to cool down.

Maintenance and Storage

Do not expose your battery pack or cordless tools to water or rain, or allow them to get wet.This could damage the tool and battery pack. Do not use oil or solvents to clean or lubricate your battery pack. The plastic casing will become brittle and crack, causing a risk of injury.

Store battery packs at room temperature away from moisture. Do not store in damp locations where cor- rosion of terminals may occur.. As with other battery pack types, permanent capacity loss can result if the pack is stored for long periods of time at high temperatures (65°C). MILWAUKEE Lithium-

Ion battery packs maintain their charge during storage longer than other battery pack types. After about a year of storage, charge the pack as normal.

Do not keep topping up the battery without using the battery pack. Run down to 50% (2 lights) at least every six (6) months.

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 Packs MILWAUKEE Lithium-Ion battery packs are more environmentally friendly than some other types of power tool battery packs (e.g., nickel-cadmium).

Always dispose of your battery pack according to federal, state and local regulations. Contact a re- cycling agency in your area for recycling locations. Even discharged battery packs contain some energy. Before disposing, use electrical tape to cover the terminals to prevent the battery pack from shorting, which could cause a fire or explosion.

Fuel Gauge Lights		Diagnosis	Solution
Lights 1 - 4 Solid		Remaining run time	Continue working
1	Light, flashing slowly	Less than 10% run	Prepare to charge pack
		time left
1	Light, flashing quickly	End of discharge	Charge pack
Lights 1-4, flashing		Current draw too high	Release trigger and restart,
quickly			reduce pressure
Lights 1&3 / 2&4,		Battery temperature	Release trigger and allow
flashing alternatingly		too high	battery to cool

Cold Weather Operation

MILWAUKEE M18 LITHIUM-ION battery packs can be used in temperatures down to 0°C . When the battery pack is very cold, put the battery pack on a tool and use the tool in a light application. It may “buzz” for a short time until it warms up. When the buzzing stops, use the tool normally.

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