Milwaukee NiCd Battery Pack Operation

Battery Pack Protection

To protect itself from damage and extend its life, the battery pack's intelligent circuit will turn off the battery pack if its internal temperature becomes too high. This could happen in extremely high torque, binding

WARNING

To reduce the risk of injury or explosion, never burn or incinerate a battery pack even if it is damaged,

MILWAUKEE NiCd BATTERY PACK OPERATION

MILWAUKEE battery packs will operate for many years and/or hundreds of cycles when they are used, charged, and stored according to these instructions. Properly using, charging, and storing your battery pack can greatly extend its life.

and stalling situations. The pack must be placed on the charger to turn it back on. The charger's light indicator will ﬂash red, indicating that the pack is too hot. Once the light is continuously red, the pack has cooled and can be used again.

Cold Weather Operation

The MILWAUKEE Lithium-Ion battery pack can be used in temperatures down to -4°F. When the battery pack is very cold, it may "buzz" for the ﬁrst minute of use to warm itself up. Put the battery pack on a tool and use the tool in a light application. After about a minute, the pack will have warmed itself up and operate normally.

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 cas- ing 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 corrosion of terminals may occur. As with other battery pack types, per- manent capacity loss can result if the pack is stored for long periods of time at high tem- peratures (over 120° F). MILWAUKEE Lith- ium-Ion battery packs maintain their charge during storage longer than other battery pack types. After about six months of storage, charge the pack as normal.

dead or completely discharged. When burned, toxic fumes and materials are created.

Disposing of MILWAUKEE Lithium-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 recycling 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.

RBRC Battery Recycling Seals

The RBRC™ Battery Recycling Seals (see "Symbology") on your tool battery packs indicate that MILWAUKEE has arranged for the recycling of that battery pack with the Rechargeable Battery Recycling Cor- poration (RBRC). At the end of your battery pack's useful life, return the battery pack to a MILWAUKEE Branch Ofﬁce/Service Center or the participating retailer nearest you. For more information, visit the RBRC web site at www.rbrc.org.

Charge the new battery pack over- night before use to allow the cells to become fully charged. New

battery packs are not fully charged. Two to ten normal charging/discharging cycles may be required before the pack can take its maximum charge.

Never completely discharge the battery pack. MILWAUKEE battery packs do not develop a "memory"

when charged after only a partial discharge. Taping-on triggers or leaving work lights on for extended periods to completely discharge the battery pack will reduce its life by upset- ting the electrochemical balance and can result in short-circuiting of the battery.

Do not use or charge batteries in cold or hot places (below 41°F (5°C) or above 113°F (45°C)). Temperature

extremes reduce the ability for battery pack cells to hold a charge. Do not store batteries where the temperature may exceed 120°F (50°C), such as in a vehicle or metal building during the summer.

To avoid overheating to a battery pack, allow cordless tools cool down between high torque drilling/cutting applications. The increased energy discharge rate will heat the battery pack cells faster than the cells can release the heat. This could dam- age the cells.

After use, allow a hot battery pack to cool to room temperature before inserting it into the charger. If a hot battery is put on a char- ger, charging will not begin until the battery has cooled to a safe temperature. See the charger section of this manual for more infor- mation on charging temperatures. Charging a hot battery will damage the cells.

Never forcibly heat up or cool down bat- teries. This will damage some cells in the pack, causing them to not be able to hold a charge.

Remove the battery pack from the tool for charging when the tool can no longer perform its intended function (i.e., drilling, cutting, etc.).

After the battery pack has reached a full charge, it will continue to receive a trickle charge to ensure capacity is

maintained.

Occasionally (once a week) leave the batteries on the charger overnight to help maintain cell balance.

Do not store the battery on the charger (for more than 24 hours); this could re- duce battery life.

Never leave batteries on chargers where power interruptions are common. Damage to the battery cells could occur.

Store batteries at room tempera- ture away from moisture. Do not store in damp locations where corro-

sion of terminals may occur.

Do not submerge your battery or cord- less tools in water. This will damage the battery and tool.

Charge unused batteries overnight at least every six months to maximize bat- tery life. Unused batteries discharge at a rate of about 1% per day and will be fully discharged after six months. For batteries stored for a long time, two to ten normal charging cycles may be required before the pack is fully charged.

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.