1. Introduction
Thank you for choosing the ENERGYWELL P8 External Battery Pack for your dashcam. This device is designed to provide extended power to your dashcam, especially during parking surveillance, and to protect your vehicle's battery from discharge. The P8 features a 12000 mAh LiFePO4 battery, an LCD display for real-time information, and multiple charging/output options.
Please read this manual thoroughly before using the product to ensure proper operation and to maximize its lifespan.
2. Safety Information
- Do not expose the battery pack to extreme temperatures, direct sunlight, or fire.
- Do not disassemble, puncture, or modify the device.
- Keep out of reach of children.
- Use only approved charging cables and adapters.
- Ensure proper ventilation when operating or charging.
- If the battery pack shows signs of damage, swelling, or leakage, discontinue use immediately and dispose of it properly.
3. Package Contents
Verify that all items are present in your package:
- ENERGYWELL P8 External Battery Pack
- ACC Power Cable (for fuse box connection)
- Cigarette Lighter Power Cable
- Velcro Mounting Strips
- User Manual (this document)

Image: Contents of the ENERGYWELL P8 package, including the battery pack, various connection cables, and velcro mounting strips.
4. Product Overview
Familiarize yourself with the components of your ENERGYWELL P8 battery pack.
Front Panel

Image: Top-down view of the ENERGYWELL P8 battery pack, highlighting the LCD display, two USB-A output ports, one USB-C input/output port, and control buttons (OK, ON/OFF).
- LCD Display: Shows battery level, voltage, ACC status, and remaining parking mode time.
- OK Button: Used for menu navigation or confirmation.
- USB-1 & USB-2 Ports: Standard USB-A output ports (20W total output).
- Type-C Port: USB-C input/output port (45W input/output).
- ON/OFF Button: Powers the unit on or off.
Rear Panel

Image: Rear view of the ENERGYWELL P8 battery pack, showing the DC-IN 12V port for charging, a 'LIGHT' indicator, an 'EXT.BAT' port for external battery coupling, and a multi-pin output connector for dashcam power.
- DC-IN 12V: Main power input for charging the battery pack.
- LIGHT: LED indicator or output for an external light (if applicable).
- EXT.BAT: Port for connecting an optional external battery for extended capacity.
- Output Connector: Multi-pin connector for providing power to the dashcam.
5. Setup and Installation
The ENERGYWELL P8 offers flexible installation options. Choose the method that best suits your vehicle and dashcam setup.
Charging the Battery Pack
Before first use, fully charge the battery pack. Connect the provided cigarette lighter cable or ACC power cable to the DC-IN 12V port on the battery pack and to your vehicle's power source. The LCD screen will indicate charging status.
Connecting to Your Dashcam
There are two primary methods for connecting the P8 to your vehicle's power and your dashcam:
Option 1: Cigarette Lighter Connection
- Connect the cigarette lighter power cable to the DC-IN 12V port of the P8.
- Plug the other end of the cigarette lighter cable into your vehicle's 12V accessory socket.
- Connect your dashcam's original power cable to the multi-pin output connector of the P8.
This option is generally simpler for temporary setups or if you prefer not to hardwire.
Option 2: Fuse Box (ACC) Connection (Recommended for Parking Mode)
- Using the provided ACC power cable, connect the appropriate wires to your vehicle's fuse box. Typically, this involves connecting to a constant power source (B+) and an accessory power source (ACC) that turns on/off with the ignition, as well as a ground wire (GND). Consult your vehicle's manual or a professional for fuse box wiring.
- Connect the other end of the ACC power cable to the DC-IN 12V port of the P8.
- Connect your dashcam's original power cable to the multi-pin output connector of the P8.
This method allows the P8 to detect ignition status and automatically switch between driving and parking modes, providing continuous power to your dashcam for extended parking surveillance.

Image: A diagram illustrating the two main connection options for the ENERGYWELL P8: via the cigarette lighter socket or by hardwiring to the vehicle's fuse box. It also shows the connection to the dashcam and the possibility of connecting an additional external battery.
Mounting the Battery Pack
Use the provided velcro mounting strips to secure the P8 battery pack in a suitable location within your vehicle, such as under a seat or in the glove compartment. Ensure it is in a stable position and does not obstruct driving controls or airbags.
6. Operating Instructions
Powering On/Off
- Press and hold the ON/OFF button for a few seconds to power the unit on or off.
- The LCD screen will illuminate upon power-on.
Understanding the LCD Display
The LCD display provides critical information about the battery pack's status:

Image: The LCD screen of the ENERGYWELL P8, displaying battery charge level, current voltage (e.g., 12.8V), ACC status (ON/OFF), and estimated remaining parking mode time (e.g., 3H).
- Bat (Battery Icon): Indicates the current charge level of the internal battery.
- Voltage (e.g., 12.8V): Shows the current output voltage.
- ACC ON/OFF: Indicates whether the vehicle's ignition (ACC) is detected as ON or OFF. This determines if the dashcam is in driving or parking mode.
- Timer (e.g., 3H): Estimates the remaining operating time for the dashcam in parking mode based on current power consumption.
Parking Mode Operation
When connected via the ACC power cable, the P8 automatically detects when your vehicle's ignition is turned off (ACC OFF). It then provides continuous power to your dashcam for parking surveillance, drawing power from its internal battery. The LCD's "Timer" will show the estimated remaining parking mode duration.
When the vehicle's ignition is turned on (ACC ON), the P8 will charge from the vehicle's electrical system and simultaneously power the dashcam, ensuring the dashcam operates without draining the vehicle's main battery.
USB and USB-C Outputs
The USB-A (USB-1, USB-2) and USB-C ports can be used to charge other compatible devices such as smartphones, tablets, or MP3 players. These ports provide power independently and can be used even when the dashcam is in parking mode, though this will reduce the overall parking mode duration.
7. Maintenance
- Cleaning: Wipe the exterior of the battery pack with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Storage: If storing the battery pack for an extended period, ensure it is charged to approximately 50-70% and store it in a cool, dry place away from direct sunlight. Recharge every 3-6 months to maintain battery health.
- Battery Health: The LiFePO4 battery is designed for long life. Avoid fully discharging the battery frequently to prolong its lifespan.
8. Troubleshooting
- Battery Pack Not Charging:
- Ensure all cables are securely connected.
- Check the vehicle's power source (cigarette lighter or fuse box) for proper function.
- Verify the vehicle's ignition is on if using an ACC connection for charging.
- Dashcam Not Receiving Power:
- Confirm the ENERGYWELL P8 is powered on.
- Check the connection between the P8 and the dashcam.
- Ensure the P8 has sufficient charge.
- Parking Mode Not Activating:
- Verify the P8 is connected via the ACC power cable to the vehicle's fuse box.
- Ensure the ACC wire is correctly connected to a switched power source.
- LCD Display Not Working:
- Try powering the unit off and on again.
- If the issue persists, contact customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | P8 |
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Battery Capacity | 12000 mAh |
| Input Voltage | 12V DC (via ACC or Cigarette Lighter) |
| USB-A Output | 2 x USB-A (20W total) |
| USB-C Input/Output | 1 x USB-C (45W) |
| Parking Mode Support | Yes, up to 48 hours (depending on dashcam consumption) |
| Display | LCD VA Screen |
| Special Features | Parking Monitor, ACC Car Charging, LED Lighting |
| Compatible Devices | Dashcams, Smartphones, Tablets, MP3 Players, Routers |
| Color | Black |
| Item Weight | 2.2 Kilograms |
10. Warranty and Support
Specific warranty information for the ENERGYWELL P8 is not available in the provided product details. Please refer to the product packaging or contact your retailer for warranty terms and conditions.
For technical support or further assistance, please contact ENERGYWELL customer service through their official website or the contact information provided with your purchase.





