Introduction
This manual provides essential information for the safe and effective use of your MakerHawk 3.7V 3000mAh LiPo Battery. This battery features a brand-new A-grade lithium cobalt oxide system, offering high energy density, stable discharge performance, and a long lifespan. It complies with UN 38.3 standards for safety and reliability. Please read these instructions carefully before use.
Specifications

Image: Detailed specifications of the battery.
| Feature | Detail |
|---|---|
| Number of Batteries | 4 Lithium Polymer batteries (included) |
| Brand | MakerHawk |
| Battery Cell Composition | Lithium Polymer |
| Battery Capacity | 3000 mAh |
| Voltage | 3.7 volts |
| Reusability | Rechargeable |
| Unit Count | 4 Count |
| Battery Weight | 47.5 g (per battery) |
| Item Dimensions (L x W x H) | 65mm x 36mm x 10mm (approximate) |
| BMS Overcharge Voltage | 4.2V |
| BMS Over-discharge Voltage | 3.0V |
| Maximum Charging Current | 0.5C |
| Charging Temperature | 0-45°C |
| Discharge Temperature | -10-60°C |
| Type of Connector | Micro JST 1.25 |

Image: Physical dimensions of the battery.
Product Dimensions Video
Video: This video demonstrates the physical dimensions of the MakerHawk 3.7V 3000mAh LiPo battery using a digital caliper.
Setup and Connection
The MakerHawk LiPo battery is equipped with a Micro JST 1.25 plug for easy connection to compatible development boards and devices.

Image: Micro JST 1.25 Plug.
Compatibility
This battery is designed for use with various development boards that feature a compatible 1.25mm plug. Common compatible platforms include Arduino, NodeMCU, and ESP32 development boards.

Image: Examples of compatible development boards.
Operating Instructions
Charging
To charge the battery, connect it to a compatible LiPo charger. The battery features an integrated over-charge protection circuit. When the battery voltage reaches its maximum (4.2V), the protection circuit will automatically cut off power, indicating a full charge. Ensure your charger's output voltage is appropriate for 1S LiPo batteries.
Discharging
The battery is equipped with an over-discharge protection circuit. When the battery voltage drops to 3.0V, the protection circuit will shut down to prevent further discharge, protecting the battery from damage and extending its lifespan.
Maintenance and Storage
Proper maintenance and storage are crucial for maximizing the lifespan and safety of your LiPo battery.
- Long-Term Storage: For extended storage periods, keep the battery charged between 40% and 60% of its capacity.
- Recharge Frequency: We recommend charging the battery to a voltage of 3.7-4.0V once every 3 months if it is not in regular use.
- Storage Environment: Store the battery in a cool, dry place, away from direct sunlight, heat sources, and flammable materials.
Safety Information and Protection Features
Your MakerHawk LiPo battery includes several built-in protection features to ensure safe operation:

Image: Battery protection features.
- Over-Charge Protection: Prevents the battery from being charged beyond its safe voltage limit (4.2V).
- Over-Discharge Protection: Prevents the battery from being discharged below its safe voltage limit (3.0V).
- Short Circuit Protection: In the event of a short circuit, the protection circuit will automatically shut down within milliseconds to prevent damage.
Important Safety Notice

Image: Overcurrent protection warning.
While the battery's overcurrent protection feature is in place, it may not be entirely foolproof. It is advisable to avoid charging and discharging the battery at excessively high currents or at currents and voltages beyond the recommended range. Doing so could potentially damage the protection circuitry, rendering it ineffective. Always use appropriate charging equipment and monitor battery behavior.
Troubleshooting
- Battery not charging: Ensure the charger is compatible with 1S LiPo batteries and is functioning correctly. Check for proper connection of the Micro JST 1.25 plug. The over-charge protection may have activated if the battery is already full.
- Battery not powering device: Verify the battery is sufficiently charged. Check for proper connection to the device. The over-discharge protection may have activated if the battery voltage is too low.
- Battery gets hot during use/charging: Discontinue use immediately. This could indicate an internal short circuit or overcurrent condition. Refer to the safety information.
- Short circuit protection activated: If the battery stops working after a sudden event, the short circuit protection may have engaged. Disconnect the battery and inspect for any visible damage or faulty connections.
Warranty and Support
For warranty information or technical support, please contact MakerHawk directly through their official website or the retailer where the product was purchased. Keep your purchase receipt as proof of purchase.