Introduction
This manual provides essential information for the safe and effective use of your Milwaukee 48-11-2450 12V Lithium-Ion High Output 5Ah Battery Pack. This battery pack is designed to deliver fade-free power and extended run-time for compatible Milwaukee M12 cordless power tools.

Important Safety Information
Always read and understand all instructions and warnings provided with the battery pack and your power tool before use. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Use only with Milwaukee M12 Lithium-Ion chargers.
- Do not immerse in water or other liquids.
- Do not store in locations where the temperature may reach or exceed 122°F (50°C).
- Do not incinerate the battery pack, even if it is severely damaged or completely dead.
- Do not short circuit the battery pack.
- Dispose of properly. Refer to local regulations for battery disposal.

Setup and Initial Charge
Follow these steps to prepare your battery pack for use:
- Unpacking: Carefully remove the battery packs from their packaging.
- Initial Charge: For optimal performance, fully charge the battery pack before first use. Insert the battery into a compatible Milwaukee M12 Lithium-Ion charger. The charger indicator light will show the charging status.
- Installation: Align the battery pack with the battery slot on your Milwaukee M12 cordless power tool and slide it in until it clicks securely into place.
Operating the Battery Pack
The Milwaukee 48-11-2450 battery pack provides high output power and extended run-time for demanding applications.
- Power Delivery: This High Output battery delivers 25% more power compared to standard M12 batteries, ensuring consistent performance even under heavy load.
- Run Time: With 5 Amp Hours (5Ah) capacity, it offers maximum run time, suitable for tools like lights, saws, and rotary tools.
- Temperature Management: The updated cell technology allows the battery to run cooler, enhancing performance and longevity, especially in cold weather conditions (down to 0°F / -18°C).
- Compatibility: This battery pack is compatible with over 125 Milwaukee M12 cordless power tools.

Maintenance and Storage
Proper maintenance and storage will extend the life of your battery pack.
- Cleaning: Keep the battery pack clean and free of dirt, grease, oil, and solvents. The resistant housing helps protect against these substances. Use a soft, dry cloth for cleaning.
- Charging: Always charge the battery pack in a well-ventilated area. Do not charge in extreme temperatures.
- Storage: Store battery packs in a cool, dry place, away from direct sunlight and excessive heat. Avoid storing in temperatures above 122°F (50°C).
- Long-Term Storage: For long-term storage, charge the battery to approximately 50% capacity. This helps maintain battery health over time.
- Avoid Deep Discharge: Do not allow the battery to completely discharge. Recharge it as soon as the tool's performance decreases.
Troubleshooting Common Issues
Battery Not Charging
- Check Charger Connection: Ensure the battery is properly seated in the charger and the charger is plugged into a working power outlet.
- Charger Malfunction: Try another compatible Milwaukee M12 charger if available.
- Battery Temperature: If the battery is too hot or too cold, the charger may delay charging until it reaches an acceptable temperature range.
Reduced Run Time or Power
- Full Charge: Ensure the battery is fully charged before use.
- Battery Age: Over time, all rechargeable batteries experience a decrease in capacity. Consider replacing older battery packs.
- Tool Compatibility: Verify that the battery is compatible with the specific M12 tool being used.
Product Specifications
| Feature | Detail |
|---|---|
| Model Number | 48-11-2450 |
| Voltage | 12V |
| Battery Type | Lithium Ion |
| Capacity | 5 Amp Hours (5Ah) |
| Output Type | High Output |
| Item Weight | 2.07 pounds |
| Package Dimensions | 9.41 x 5.47 x 3.74 inches |
| Manufacturer | Milwaukee |
| Compatibility | Milwaukee M12 Cordless Power Tools |
Warranty and Support
Milwaukee battery packs typically come with a manufacturer's warranty. For specific warranty details, including duration and coverage, please refer to the documentation included with your purchase or visit the official Milwaukee website.
For technical support, service, or replacement parts, contact Milwaukee customer service directly through their official channels.





