Introduction
This manual provides essential instructions for the safe and effective use of your BCXY CS-PBT950XL replacement battery. Please read this manual thoroughly before installation and operation to ensure proper function and longevity of the battery.
Safety Information
Your safety is paramount. Observe the following precautions to prevent injury or damage to the battery and connected devices.
- Do not attempt to disassemble, open, or service the battery pack. Unauthorized modifications can lead to hazards.
- Replace only with the battery pack designated for this product. Using incompatible batteries may cause damage or safety risks.
- Do not crush, puncture, short external contacts, or dispose of in fire or water. These actions can cause explosions, fire, or leakage.
- Do not store above 60°C (140°F). High temperatures can degrade battery performance and pose a safety risk.
- The battery features built-in protection against overcharge, over-discharge, over-voltage, and short circuits to enhance safety and battery life.
- This product is RoHS approved for toxic-free materials and holds CE and ISO9001 certificates for quality assurance.

Image: Close-up view of the battery label, detailing model number, voltage, capacity, and critical safety warnings regarding disassembly, replacement, physical damage, and temperature limits.
Setup and Installation
Before installing the new battery, ensure your device is powered off and disconnected from any power source. Always refer to your device's original instruction manual for specific battery compartment access and removal procedures.
- Verify Compatibility: Confirm that the BCXY CS-PBT950XL battery is compatible with your device model and original battery part number. Compatible device models include:
- Brother PT-P950NW
- Brother PA-BB-002
- Brother PT-E800T/TK
- Brother RuggedJet RJ4040
- Brother RuggedJet RJ4040-K
- Brother TD-2120N
- Brother RJ4030
- Brother TD-2130N
- Brother PT-P900W
- Initial Charge: The new battery pack must be fully charged before its first use to optimize performance and lifespan.
- Installation: Carefully insert the battery into the designated compartment of your device, ensuring proper alignment of the contacts. Secure the battery compartment cover according to your device's instructions.


Image: Left, bottom view of the battery showing the gold electrical contacts for device connection. Right, top view of the battery with its product label visible.
Operating Instructions
Once installed and fully charged, the battery is ready for use. Operate your device as usual. For optimal battery life:
- Avoid completely discharging the battery frequently.
- Charge the battery using only the charger specified by your device manufacturer.
- If the device will not be used for an extended period, store the battery with a partial charge (around 50%) in a cool, dry place.
Maintenance
Proper maintenance extends the life of your battery.
- Cleaning: Keep battery contacts clean and free of debris. Use a dry, soft cloth to wipe contacts if necessary.
- Storage: If storing the battery for an extended period, remove it from the device and store it in a cool, dry place between 10°C and 30°C (50°F and 86°F). Avoid extreme temperatures.
- Recharge Cycle: For long-term storage, recharge the battery every 3-6 months to maintain its capacity.
Troubleshooting
If you encounter issues with your battery, consider the following common solutions:
- Battery Not Charging:
- Ensure the battery is correctly seated in the device or charger.
- Verify the charger is functioning and properly connected to a power source.
- Check for any debris or corrosion on the battery and device/charger contacts.
- Short Operating Time:
- Ensure the battery was fully charged before use.
- Operating in extremely cold or hot environments can reduce battery performance.
- If the battery is old, its capacity may have naturally degraded over time.
- Device Not Powering On:
- Confirm the battery is charged.
- Re-install the battery to ensure proper connection.
- Test the device with another known-good battery if available, or test the battery in a compatible device if possible.
If problems persist after attempting these steps, please contact the seller or manufacturer for further assistance.
Specifications
| Model Number | CS-PBT950XL |
| Part Numbers | PA-BT-4000LI, LBC4090002, LBD709-001, LBF3250001, 25B |
| Battery Type | Lithium-Ion |
| Voltage | 14.4V |
| Capacity | 3400mAh |
| Watt-Hours (Wh) | 48.96Wh |
| Dimensions (L x W x H) | 85.8 x 73.0 x 30.75 mm (3.38 x 2.87 x 1.21 inches) |
| Weight | 292.1 g (10.3 ounces) |
| Certifications | ISO9001, RoHS, CE, UN38.3, MSDS |
| Recommended Uses | Indoor/Outdoor |
Warranty and Support
For information regarding warranty coverage, returns, or technical support, please refer to the specific terms and conditions provided by your retailer or contact the BCXY customer service directly. Keep your purchase receipt as proof of purchase.