Introduction
This manual provides essential instructions for the safe and efficient use of your DEERC 3.7V/600mAh Battery and Charger, designed specifically for the DEERC DE51 2.4GHz Remote Control Helicopter. Please read this manual thoroughly before use to ensure proper operation and longevity of your product.
Package Contents
Verify that all items are present in your package:
- 1 x DEERC 3.7V/600mAh Li-Po Battery
- 1 x USB Charging Cable

Image: The DEERC 3.7V/600mAh Li-Po battery (left) and its accompanying USB charging cable (right). The battery is a black rectangular unit with three horizontal vents, and the charger is a black USB-A plug with an attached cable ending in a white connector for the battery.
Safety Precautions
- Do not overcharge or over-discharge batteries.
- Do not expose batteries to high temperatures or direct sunlight.
- Keep batteries away from flammable materials.
- Use only the provided charger or a compatible charger specified by DEERC.
- Supervise charging at all times.
- If the battery swells, leaks, or shows any signs of damage, discontinue use immediately.
- Keep out of reach of children. Recommended age for use is 14 years and up.
Setup and Charging
- Connect the Battery: Carefully connect the battery's white connector to the corresponding connector on the USB charging cable. Ensure the connection is secure and correctly oriented to avoid damage.
- Connect the Charger: Plug the USB-A end of the charging cable into a standard USB power source (e.g., computer USB port, USB wall adapter, power bank). The power source should provide 5V DC.
- Charging Indicator: The USB charging cable typically features an LED indicator.
- Red Light On: Indicates the battery is currently charging.
- Red Light Off: Indicates the battery is fully charged or not connected properly.
- Charging Time: The approximate charging time for a fully depleted battery is 60 minutes. Do not exceed this charging time to prevent overcharging.
- Disconnect: Once charging is complete, disconnect the USB charging cable from the power source, then carefully disconnect the battery from the charging cable.
Operating Instructions (Battery Installation)
This section describes how to install the charged battery into your DEERC DE51 Remote Control Helicopter.
- Power Off: Ensure the DEERC DE51 helicopter is powered off before installing or removing the battery.
- Locate Battery Compartment: Identify the battery compartment on the helicopter, usually located on the underside or rear. Refer to your DE51 helicopter's specific manual for exact location.
- Insert Battery: Carefully insert the charged 3.7V/600mAh battery into the compartment, ensuring it fits snugly.
- Connect Battery: Connect the battery's connector to the helicopter's power port. Ensure the connection is firm.
- Secure Compartment: Close and secure the battery compartment cover.
For detailed operating instructions of the DEERC DE51 helicopter itself, please refer to the helicopter's dedicated instruction manual.
Maintenance and Storage
- Battery Care: For optimal battery life, avoid fully discharging the battery. Charge it before it is completely depleted.
- Long-Term Storage: If storing the battery for an extended period, charge it to approximately 50-60% capacity. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Use a dry, soft cloth to clean the battery and charger. Do not use liquids or solvents.
- Disposal: Dispose of old or damaged batteries according to local regulations. Do not dispose of them in household waste.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging (charger light off) |
|
|
| Short flight time after full charge |
|
|
Specifications
- Battery Type: Lithium Polymer (Li-Po)
- Voltage: 3.7V
- Capacity: 600mAh
- Charging Time: Approximately 60 minutes
- Charger Input: USB 5V DC
- Charger Output: 3.7V
- Compatibility: DEERC DE51 2.4GHz Remote Control Helicopter
- Item Weight: 10.4 Grams (0.367 ounces)
- Manufacturer Recommended Age: 14 years and up
Warranty and Support
For warranty information or technical support, please contact DEERC customer service. Refer to the original product packaging or the DEERC official website for contact details.
DEERC Official Website: Visit the DEERC Store on Amazon





