1. Introduction
Thank you for choosing the MakerFocus 3.7V 3000mAh Lithium Polymer Rechargeable Battery. This manual provides essential information for the safe and efficient use of your battery. Please read it thoroughly before use and retain it for future reference. These batteries are designed for use with development boards such as ESP32 LoRa V3/V4, Wireless Tracker, Mesh Node T114/T096, and other compatible electronic devices requiring a JST 1.25 plug.
Image 1: MakerFocus 3.7V 3000mAh Lithium Polymer Rechargeable Battery (4-pack shown).
2. Safety Information and Precautions
Lithium Polymer (LiPo) batteries require careful handling. Failure to follow these safety guidelines can result in fire, personal injury, or property damage.
- Charging: Use only chargers designed for LiPo batteries. The recommended charging current is 0.6A, with a maximum of 1.5A. Do not exceed the maximum charging current.
- Overcharge Protection: The battery features an integrated protection board that automatically cuts off power when the voltage reaches 4.2V, preventing overcharging.
- Discharging: The recommended discharge current is 0.6A, with a maximum of 1.5A. Do not exceed the maximum discharge current.
- Over-discharge Protection: The protection board will automatically cut off power when the battery voltage drops to 3.0V, preventing over-discharging.
- Short Circuit Protection: In case of an accidental short circuit, the protection board will shut down within milliseconds. Warning: If the battery cell itself is short-circuited (not through the protection board), the protection board may fail due to continuous high current, leading to damage.
- Temperature: Operate and store batteries within recommended temperature ranges. Avoid extreme heat or cold.
- Physical Damage: Do not puncture, crush, or disassemble the battery. Discontinue use if the battery appears damaged, swollen, or leaking.
- Storage: Store batteries in a cool, dry place away from flammable materials.
- Disposal: Dispose of batteries according to local regulations. Do not dispose of in household waste.
Image 2: Visual representation of the battery's integrated protection features.
3. Product Features
- High Capacity: 3000mAh for extended operation.
- Standard Voltage: 3.7V nominal voltage.
- Integrated Protection: Built-in protection board for overcharge, over-discharge, and short circuit.
- JST 1.25 Plug: Equipped with a JST 1.25 connector for wide compatibility with various development boards and electronic devices.
- Wide Application: Suitable for ESP32 LoRa V3/V4, Wireless Tracker, Mesh Node T114/T096, and other devices using SH1.25-2 plugs.
Image 3: Key specifications: 3000mAh capacity, 3.7V voltage, and 11.1Wh energy.
4. Specifications
| Parameter | Value |
|---|---|
| Nominal Voltage | 3.7V |
| Battery Capacity | 3000mAh (Typical: 3050mAh @0.2C Discharge) |
| Energy | 11.1Wh |
| Charge Cut-off Voltage | 4.2V |
| Discharge Cut-off Voltage | 3.0V |
| Max Charge Rate | 0.5C (Max 1.5A) |
| Max Discharge Rate | 0.5C (Max 1.5A) |
| Charge Temperature | 0~15°C (Max 0.2C, Cut-off 4.1V), 15~45°C (Max 0.5C, Cut-off 4.2V) |
| Discharge Temperature | -10~60°C |
| Connector Type | JST 1.25 |
| Dimensions (approx.) | 65mm x 35mm x 10mm (excluding wires) |
| Weight (approx.) | 45g per battery (180g for 4-pack) |
Image 4: Detailed specifications including voltage, capacity, and temperature ranges.
Image 5: Physical dimensions of the battery: 65mm length, 35mm width, 10mm thickness, with 55mm wire length.
5. Setup and Installation
These batteries are equipped with a JST 1.25 plug, making them compatible with various development boards and electronic devices that utilize an SH1.25-2 plug.
- Identify Compatible Device: Ensure your device requires a 3.7V Lithium Polymer battery and has a compatible SH1.25-2 connector.
- Connect Battery: Carefully align the JST 1.25 plug of the battery with the corresponding port on your development board or electronic device. Gently push until it is securely connected. Do not force the connection.
- Secure Battery: If possible, secure the battery to prevent movement during operation, especially in portable applications.
Compatible Devices include:
- ✓ ESP32 LoRa V3
- ✓ ESP32 LoRa V4
- ✓ Wireless Tracker
- ✓ Mesh Node T114
- ✓ Mesh Node T096
- ✓ Other electronic devices with SH1.25-2 plug
Image 6: The JST 1.25 connector and its compatibility with various development boards.
Image 7: Visual examples of development boards compatible with this battery, including WiFi LoRa 32, WiFi Kit 32, CubeCell Dev-Board, and Wireless Tracker.
6. Operating Instructions
To ensure optimal performance and longevity of your MakerFocus LiPo battery, follow these charging and discharging guidelines.
6.1 Charging the Battery
- Connect the battery to a compatible LiPo charger.
- The recommended charging current is 0.6A.
- The maximum charging current should not exceed 1.5A.
- The battery's internal protection board will automatically stop charging when the voltage reaches 4.2V, preventing overcharge.
- Ensure charging takes place within the recommended temperature range: 0~45°C.
6.2 Discharging the Battery
- The recommended discharge current is 0.6A.
- The maximum discharge current should not exceed 1.5A.
- The battery's internal protection board will automatically cut off power when the voltage drops to 3.0V, preventing over-discharge.
- Ensure discharging takes place within the recommended temperature range: -10~60°C.
Image 8: Recommended charging and discharging currents for the battery.
7. Maintenance
Proper maintenance extends the lifespan and ensures the safe operation of your LiPo battery.
- Regular Inspection: Periodically inspect the battery for any signs of physical damage, swelling, or leakage. Discontinue use immediately if any issues are observed.
- Cleanliness: Keep the battery and its connectors clean and free from dust or debris.
- Storage: For long-term storage, charge the battery to approximately 3.8V per cell (storage voltage) and store it in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Deep Discharge: While the battery has over-discharge protection, consistently running it down to the protection limit can reduce its overall lifespan.
8. Troubleshooting
If you encounter issues with your battery, consider the following:
- Battery Not Charging:
- Ensure the charger is functioning correctly and is compatible with LiPo batteries.
- Check if the battery's protection board has activated due to over-discharge. If so, a specialized LiPo charger might be needed to reactivate it, or the battery may be permanently damaged.
- Verify connections are secure and free from corrosion.
- Battery Not Discharging / Device Not Powering On:
- Check if the battery's protection board has activated due to over-discharge (voltage below 3.0V).
- Ensure the battery is adequately charged.
- Verify that the battery connector is properly seated in the device.
- Check for any short circuits in the device or wiring connected to the battery.
- Battery Swelling or Overheating:
- Immediately discontinue use and disconnect the battery.
- This indicates a serious internal issue. Do not attempt to charge or use the battery further.
- Dispose of the battery safely according to local regulations.
- Protection Board Failure:
- The protection board is designed to prevent damage, but it is not foolproof. Continuous high current charging/discharging beyond specified limits can damage the protection board.
- If the battery cell is short-circuited directly (not through the protection board), the board may also fail.
9. Warranty Information
As per the product specifications, this MakerFocus 3.7V 3000mAh Lithium Polymer Rechargeable Battery comes with No Warranty. Please refer to the retailer's return policy for any initial product defects upon receipt.
10. Support
For further assistance or inquiries regarding your MakerFocus 3.7V 3000mAh Lithium Polymer Rechargeable Battery, please contact the seller or manufacturer directly through their official channels.
You can often find support contact information on the product packaging or the retailer's website where the product was purchased.
Manufacturer: MakerFocus