Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Dogtra BP74T Replacement Battery. This battery is specifically designed for use with Dogtra 2500T&B, 2502T&B, 3500T&B, and 3502T&B series transmitters. Please read these instructions carefully before proceeding to ensure safe and effective use.
Safety Information
WARNING: Failure to follow these safety instructions may result in fire, electric shock, or other injury or damage.
- Do not disassemble, modify, or attempt to repair the battery. This can cause overheating, fire, or explosion.
- Do not expose the battery to extreme temperatures (above 140°F / 60°C or below 32°F / 0°C), direct sunlight, or open flames.
- Avoid short-circuiting the battery terminals.
- Keep the battery away from water or other liquids.
- Dispose of used batteries according to local regulations. Do not dispose of in household waste.
- Keep out of reach of children and pets.
- Use only the specified charger for your Dogtra transmitter.
Package Contents
- 1 x Dogtra BP74T Replacement Battery
Setup: Battery Installation
Installing the Dogtra BP74T replacement battery requires careful handling of your transmitter. It is recommended to perform this procedure in a clean, well-lit area.
- Power Off Transmitter: Ensure your Dogtra transmitter is completely powered off before beginning.
- Locate Screws: Identify and carefully remove all screws securing the transmitter casing. Depending on your specific transmitter model (2500T&B, 2502T&B, 3500T&B, 3502T&B), there may be multiple small screws requiring a precision screwdriver.
- Open Casing: Gently separate the two halves of the transmitter casing. Be aware that there might be internal wires connecting the halves. Some models may use double-sided tape or foam padding to secure the battery and protect internal components. Exercise caution to avoid damaging these.
- Disconnect Old Battery: Locate the existing battery. Carefully disconnect its connector from the circuit board. Do not pull on the wires; grasp the connector itself.
- Remove Old Battery: Remove the old battery. If it is secured with adhesive, gently pry it loose without bending or puncturing the battery.
- Connect New Battery: Connect the new Dogtra BP74T replacement battery to the circuit board, ensuring the connector is properly aligned and seated.
- Position New Battery: Place the new battery securely within the transmitter casing. If the original battery used adhesive, you may need to apply new double-sided tape or foam padding to prevent the battery from shifting.
- Close Casing: Carefully align the two halves of the transmitter casing and gently press them together. Ensure no wires are pinched.
- Secure Screws: Re-insert and tighten all screws. Do not overtighten, as this can damage the casing.
After installation, proceed to charge the battery fully before first use.

Image: Dogtra BP74T Replacement Battery. This image displays the green and yellow battery pack with its white connector and red and black wires. The battery is labeled with specifications including 'AEenergy', 'AE703048P6H', '7.4V 1050mAh', and 'Made In China'.
Operating: Charging and Usage
Charging the Battery
- Ensure the Dogtra transmitter is powered off.
- Connect the appropriate Dogtra charger to the charging port on your transmitter.
- Plug the charger into a standard electrical outlet.
- Allow the battery to charge fully. Refer to your transmitter's original manual for specific charging indicators and times. A full charge typically takes several hours.
- Once fully charged, disconnect the charger from the transmitter and the outlet.
Usage
After the battery is fully charged, you can power on your Dogtra transmitter and use it as intended. The BP74T battery provides reliable power for extended operation of compatible Dogtra training and Beeper/Trainer systems.
Maintenance
- Regular Charging: For optimal battery life, charge the battery regularly, even if the transmitter is not in frequent use. Avoid letting the battery completely discharge for extended periods.
- Storage: If storing the transmitter for an extended period, ensure the battery is partially charged (around 50%) and store it in a cool, dry place away from direct sunlight.
- Cleaning: Keep the battery and its connectors clean and free from dust or debris. Use a dry, soft cloth for cleaning.
- Inspection: Periodically inspect the battery for any signs of swelling, leakage, or damage. If any issues are observed, discontinue use immediately and replace the battery.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Transmitter does not power on after battery installation. | Battery not fully charged, incorrect installation, faulty battery. | Ensure battery is fully charged. Re-check battery connection inside the transmitter. If problem persists, the battery may be faulty. |
| Battery does not charge. | Charger not connected properly, faulty charger, faulty battery. | Verify charger connection to transmitter and power outlet. Test charger with another compatible device if possible. If the issue remains, the battery or charger may need replacement. |
| Short operating time after full charge. | Battery degradation, extreme operating conditions. | Battery life naturally diminishes over time. If the battery is new and exhibits this behavior, it may be faulty. Ensure operation within recommended temperature ranges. |
Specifications
- Model: BP74T
- Battery Type: Lithium Polymer
- Voltage: 7.4V
- Capacity: 1050mAh
- Compatibility: Dogtra 2500T&B, 2502T&B, 3500T&B, 3502T&B Transmitters
- Item Weight: Approximately 1.6 ounces (45 grams)
- Dimensions (L x W x H): Approximately 2.2 x 1.3 x 0.51 inches (5.6 x 3.3 x 1.3 cm)
- Color: Green/Yellow
Warranty and Support
For warranty information or technical support regarding your Dogtra BP74T Replacement Battery, please refer to the warranty details provided with your original Dogtra transmitter or visit the official Dogtra website. You may also contact Dogtra customer service directly for assistance.
Dogtra Contact Information: Please visit www.dogtra.com for the most current support and contact details.





