First Use
Activating your new Milwaukee charger:
1. Initial Inspection
Carefully unpack your charger and visually inspect the device for any potential damage that may have occurred during shipping. Check that the power cord is not damaged and that the charging ports are clean and free of debris. If you notice any damage, contact Polar Industrial Equipment immediately before use.
2. Installation and positioning
Place the charger on a flat, stable, and well-ventilated surface, away from heat or moisture sources. Ensure there is adequate airflow around the charger (at least 4 inches of clearance on either side). Avoid placing the charger in direct sunlight or near flammable materials. The non-slip base will keep the device stable even on slightly inclined surfaces.
3. Initial connection and test
Plug the power cord into a standard 120V electrical outlet. The LED indicators will light up briefly to confirm that the charger is receiving power. Insert a Milwaukee battery into one of the ports until it clicks firmly into place—you should hear an audible click. The LED indicator will begin flashing to indicate that charging has begun.
4. Familiarization with the indicators
Take a few minutes to observe the LED behavior during charging. A flashing LED indicates charging, a solid green LED indicates a full charge, and a flashing red LED indicates a problem (temperature, faulty battery). Consult the manual for a complete explanation of each color code. This knowledge will save you time in the future.
Regular Maintenance
To maximize the lifespan of your Milwaukee charger and maintain optimal performance:
After each intensive use:
- Unplug the charger if it will not be used for more than 24 hours to save energy.
- Remove the batteries once fully charged to free up the ports
- Visually inspect the metal contacts for dust or residue buildup.
- Wipe the outer casing with a dry cloth if it has been exposed to construction dust.
Battery management:
- Rotate your batteries regularly to even out wear (don't always charge the same ones).
- Do not leave discharged batteries on the charger for extended periods.
- Recharge partially discharged batteries before prolonged storage (ideally to 40-60% capacity)
- Avoid leaving fully charged batteries permanently on the charger
Monthly cleaning:
- Always unplug the charger before cleaning
- Use a soft anti-static brush or compressed air to clean the charging ports
- Check the metal contacts - if oxidized, clean gently.
Cleaning and Maintenance
Deep monthly cleaning:
1. Charging ports and metal contacts
Unplug the charger and use a soft-bristled, anti-static brush to remove any dust buildup from both charging ports. For the metal contacts, use a slightly damp cloth with isopropyl alcohol (minimum 70%) to dissolve any stubborn residue. Allow to dry completely (15-20 minutes) before plugging the device back in. Never use sharp metal objects that could scratch or damage the contacts.
2. Outdoor casing and ventilation grilles
Clean the ABS case with a slightly damp microfiber cloth and mild, non-abrasive soap. Pay particular attention to the side ventilation grilles—use low-pressure compressed air (maximum 40 PSI) to dislodge any accumulated dust that could reduce the cooling system's efficiency. Absolutely avoid harsh solvents, gasoline, paint thinner, or chemical cleaners, as these can crack the plastic.
3. Power cable
Inspect the entire length of the cable for cuts, fraying, or chafing. Clean the cable with a damp cloth to remove dust and dirt. If you find any damage to the insulation, stop use immediately and contact an authorized Milwaukee service center—never attempt to repair the cable yourself.
4. Non-slip base and feet
Turn the loader over and clean the four rubber feet with a damp cloth. Remove any construction debris, wood shavings, or adhesive residue that could reduce traction. Check that the feet are not worn or torn—their good condition ensures the loader's stability on work surfaces.
Recommended frequency:Light cleaning after each dusty job site, full monthly cleaning for intensive professional use, quarterly for moderate residential use.
Recommended products:Isopropyl alcohol 70%+, compressed air, microfiber cloths, antistatic brush
Products to absolutely avoid:Excess water, solvents (acetone, thinner), abrasive cleaners, oils, greases
Precautions for Use
For your safety and the longevity of your equipment:
Never expose to water or excessive humidity:
This charger is not waterproof. Any contact with water may cause a short circuit or damage the components. Never use it in the rain, near water, or in humid environments. If it gets wet, unplug it and let it dry for 48 hours before using it again.
Avoid extreme temperatures:
Do not use the charger below 0°C or above 40°C. Cold temperatures disrupt charging, and heat damages the cells. In winter, allow the charger and batteries to warm up at room temperature for 30 minutes before use.
Do not obstruct the ventilation:
Leave at least 4 inches (10 cm) of clearance around the ventilation grilles. Never cover the charger while it is in operation to prevent overheating and internal damage.
Do not use with damaged batteries:
Do not insert cracked, swollen, or leaking batteries. They may explode, burn, or release toxic fumes. Have any battery that has been subjected to an impact inspected before recharging.
Do not leave unattended for extended periods:
Even when protected, the charger should not be left unattended for extended periods. Avoid charging overnight. Check that the temperature remains normal to the touch.
Storage Tips
Short-term storage (less than 2 weeks):
Leaving the charger plugged in in a dry, temperate location is acceptable. Remove the batteries to prevent discharge. Place in a low-traffic area; the ideal temperature is between 15°C and 25°C. Unplug if you are leaving home for several days.
Long-term storage (more than 2 weeks):
Unplug the charger, clean it, and coil the cable without bending it. Store in a clean, dry place between 10°C and 25°C, with a humidity level of 20% to 70%. Check its condition every 3 months.
Winter storage in Quebec (seasonal use):
Never store in an unheated location below 0°C. A dry basement or temperate indoor space is preferable. Avoid overheated attics. Wrap in a desiccant packet and test in the spring before reuse.
Expected lifespan with proper storage:
With proper maintenance, the charger can last 8 to 12 years. The main factors causing wear are extreme temperatures, humidity, shocks, and the use of non-Milwaukee batteries.
Ideal location:
Air-conditioned workshop, closed tool cabinet, dust-protected wall shelf or tool chest in a heated/air-conditioned vehicle.
