Introduction
This manual provides essential information for the safe and efficient use of your XCell 18V 3000mAh Ni-MH battery, model 139057. This battery is designed as an equivalent replacement for Milwaukee tool batteries, specifically compatible with models such as B18, BX18, BXS18, and 48-11-2200. Please read this manual thoroughly before initial use and retain it for future reference.

This image displays the XCell 18V Ni-MH battery. The top view highlights the electrical contacts for connecting to a tool or charger, along with the release mechanism. The XCell logo is visible on the side.
Setup and Initial Use
- Unpacking: Carefully remove the battery from its packaging. Inspect for any signs of damage.
- Initial Charge: For optimal performance and battery longevity, fully charge the battery before its first use. Use a compatible Milwaukee 18V Ni-MH battery charger.
- Installation: Align the battery with the battery slot on your compatible Milwaukee tool. Slide the battery firmly into place until it clicks, indicating a secure connection.
- Removal: To remove the battery, press the release button(s) on the battery or tool and slide the battery out.
Operating Instructions
Charging the Battery
- Always use a charger specifically designed for 18V Ni-MH batteries. Using an incompatible charger may damage the battery or charger and poses a safety risk.
- Insert the battery into the charger, ensuring proper alignment. The charger's indicator light will typically show the charging status.
- Allow the battery to charge completely. Refer to your charger's manual for specific charging times and indicator light meanings.
- Do not overcharge the battery. Once fully charged, remove it from the charger.
General Usage
- Ensure the battery is securely attached to the tool before operation.
- Monitor the tool's performance. If the tool's power decreases significantly, the battery may need recharging.
- Avoid operating tools in extremely hot or cold conditions, as this can affect battery performance and lifespan.
Maintenance and Storage
- Cleaning: Keep the battery contacts clean and free of dirt or debris. Use a dry cloth to wipe them if necessary. Do not use liquids or solvents.
- Storage: Store the battery in a cool, dry place, away from direct sunlight, moisture, and extreme temperatures. Ideal storage temperature is between 10°C and 25°C (50°F and 77°F).
- Long-Term Storage: If storing the battery for an extended period, charge it to approximately 50-70% capacity. Recharge it every 3-6 months to prevent deep discharge, which can permanently damage Ni-MH cells.
- Avoid Short Circuits: Do not allow metal objects to come into contact with the battery terminals, as this can cause a short circuit and potential fire hazard.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging |
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| Short run time |
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| Battery not fitting tool |
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If problems persist after attempting these solutions, please contact XCell customer support.
Technical Specifications
| Brand | XCell |
| Model Number | 139057 |
| Battery Type | Ni-MH (Nickel-Metal Hydride) |
| Voltage | 18 V |
| Capacity | 3000 mAh (3.0 Ah) |
| Energy | 54 Wh |
| Dimensions (L x W x H) | 139 x 78 x 70 mm |
| Weight | 1049 g (1.049 kg) |
| Equivalent to | Milwaukee B18, BX18, BXS18, 48-11-2200 |
Warranty Information
XCell products are manufactured to high-quality standards. For specific warranty terms and conditions applicable to your XCell 139057 battery, please refer to the warranty card included with your purchase or visit the official XCell website. Keep your proof of purchase for warranty claims.
Customer Support
If you have any questions, require technical assistance, or encounter issues not covered in this manual, please contact XCell customer service. Contact details can typically be found on the product packaging or the official XCell website.





