Introduction
Welcome to the instruction manual for your ECHOBBY EL2P 6.4V 900mAh LiFePO Battery. This manual provides essential information for the safe and efficient use, maintenance, and troubleshooting of your battery. Please read this manual thoroughly before using the product to ensure proper operation and longevity.
Safety Information
Lithium Iron Phosphate (LiFePO) batteries require careful handling. Adhere to the following safety guidelines to prevent injury or damage:
- Do not short circuit: Avoid connecting the positive and negative terminals directly.
- Use compatible chargers: Only use chargers specifically designed for LiFePO batteries with a 7.4V charge voltage.
- Avoid physical damage: Do not puncture, drop, or disassemble the battery.
- Temperature control: Keep the battery away from extreme heat, direct sunlight, and freezing temperatures. Do not charge or discharge in temperatures outside the recommended range (typically 0°C to 45°C for charging, -20°C to 60°C for discharging).
- Water exposure: Do not expose the battery to water or moisture.
- Supervise charging: Always monitor the battery during charging.
- Proper disposal: Dispose of batteries according to local regulations. Do not incinerate.
- Age restriction: This product is intended for users 18 years or older.
Product Overview
The ECHOBBY EL2P is a 6.4V 900mAh LiFePO battery designed for various RC applications such as speed boats, buggy cars, and trucks. It features an EL-2P female plug for connection.

Image 1: ECHOBBY EL2P 6.4V 900mAh LiFePO Battery. This image shows the overall appearance of the battery pack with its blue casing, orange label, and white EL-2P female connector.
Key Features
- Battery Type: LiFePO (Lithium Iron Phosphate)
- Capacity: 900mAh
- Voltage: 6.4V (2S configuration)
- Charge Voltage: 7.4V
- Size: 55 x 32.5 x 17mm (2.17 x 1.28 x 0.67 inches)
- Weight: 48g (1.69oz)
- Battery Plug: EL-2P female (Positive-TO-Square hole, Negative-TO-Round hole)

Image 2: Dimensions of the ECHOBBY EL2P Battery. This image illustrates the physical measurements of the battery, showing its length (55mm), width (32.5mm), and height (16.5mm).
Specifications
| Feature | Value |
|---|---|
| Battery Type | LiFePO (Lithium Iron Phosphate) |
| Capacity | 900mAh |
| Voltage | 6.4V (2S) |
| Charge Rate | 0.7-1.5A (Recommended) |
| Charge Voltage | 7.4V |
| Dimensions (L x W x H) | 55 x 32.5 x 17mm (2.17 x 1.28 x 0.67 inches) |
| Weight | 48g (1.69oz) |
| Battery Plug | EL-2P Female |
| Reusability | Rechargeable |
| Manufacturer | HN |
| First Available | September 12, 2018 |
Setup
Checking Compatibility
Before connecting, ensure your device or charger is compatible with a 6.4V LiFePO battery and features an EL-2P male plug. The EL-2P female plug on this battery has a positive terminal connected to a square hole and a negative terminal to a round hole. Verify the polarity matches your equipment.
Initial Charge
For optimal performance and longevity, it is recommended to fully charge the battery before its first use. Use a compatible LiFePO charger with a charge voltage of 7.4V.
Operating Instructions
Charging the Battery
- Connect the EL-2P female plug of the battery to a compatible LiFePO charger's EL-2P male plug.
- Ensure the charger is set to the correct voltage (7.4V) and battery type (LiFePO).
- The recommended charge rate is 0.7-1.5A. Do not exceed the maximum charge rate specified by your charger or battery.
- Monitor the charging process. Disconnect the battery once fully charged.
Discharging the Battery
- Connect the battery to your RC model (speed boat, buggy, car, truck) ensuring the EL-2P plugs are securely connected.
- Operate your RC model as intended.
- Avoid over-discharging the battery, as this can damage it. Stop use if you notice a significant drop in performance or voltage.
Maintenance and Storage
General Care
- Keep the battery clean and dry.
- Inspect the battery and its connectors regularly for any signs of damage or wear.
- Do not expose the battery to extreme temperatures.
Storage
- For long-term storage, charge the battery to approximately 50-60% of its capacity.
- Store the battery in a cool, dry place, away from direct sunlight and flammable materials.
- Do not store the battery fully charged or fully discharged for extended periods.
Troubleshooting
Battery Not Charging
- Verify the charger is properly connected and powered on.
- Ensure the charger settings (voltage, battery type) are correct for a LiFePO battery.
- Check the battery and charger plugs for damage or corrosion.
Short Run Time
- Ensure the battery is fully charged before use.
- Check for signs of battery degradation (e.g., swelling).
- Verify the RC model's power consumption is within the battery's capabilities.
Overheating During Use/Charge
- Immediately disconnect the battery.
- Ensure the charge rate is not too high.
- Check for internal short circuits or damage. Discontinue use if overheating persists.
Disposal
Do not dispose of LiFePO batteries with household waste. Please follow local regulations for proper battery recycling and disposal. Many electronics retailers and recycling centers accept rechargeable batteries.
Warranty and Support
For warranty information or technical support regarding your ECHOBBY EL2P 6.4V 900mAh LiFePO Battery, please refer to the retailer where the product was purchased or visit the official ECHOBBY website. Keep your purchase receipt as proof of purchase.



