18650 Battery Shield V8 Power Supply Module, 5V USB Output Power Bank Board, Micro USB Charging, Single 18650 Holder, On/Off Switch, 3.7V/5V Outputs for Arduino ESP32 ESP8266 DIY Projects
The 18650 Battery Shield V8 Power Supply Module is an easy and practical way to power your electronics projects from a single 18650 Li-ion battery. It works like a mini power-bank board: install a battery, charge it through Micro USB, and get a regulated 5V output through the onboard USB port and output pins.
The 18650 Battery Shield V8 Power Supply Module is an easy and practical way to power your electronics projects from a single 18650 Li-ion battery. It works like a mini power-bank board: install a battery, charge it through Micro USB, and get a regulated 5V output through the onboard USB port and output pins. This makes it perfect for portable builds such as Arduino/ESP32 sensor nodes, WiFi projects, robotics, IoT prototypes, LED projects, and DIY gadgets.
With a built-in on/off switch, you can quickly control power without unplugging cables—ideal for testing and field use. The board also provides convenient output pads/pins labeled for 5V and GND, making wiring clean and fast.
Key Features & Benefits
- Single 18650 Battery Powered: Use one 3.7V Li-ion 18650 cell (battery not included)
- 5V Boost Output: Provides USB 5V output for common devices and microcontroller boards
- Micro USB Charging Input: Recharge easily using a standard Micro USB cable/charger
- On/Off Switch: Simple, safe control for powering your circuit
- Multiple Output Points: USB output + 5V/GND pins for quick connections
- Great for Portable Projects: Clean solution for mobile power without bulky power supplies
Outputs & Connections (Typical for V8 Boards)
This board commonly includes:
- USB-A 5V output (for powering devices or boards via USB cable)
- Micro USB input (for charging the installed 18650 cell)
- 5V/GND output pins/pads along the board edge (for direct wiring)
- Some versions also expose battery voltage (3.7V) pads depending on layout
Note: Exact pin labels and output options can vary slightly by manufacturer batch, but the core function remains: charge 18650 + boost to 5V output.
Typical Specifications
| Item | Details |
|---|---|
| Product Type | 18650 Battery Shield / Power Supply Board |
| Battery Type | 1× 18650 Li-ion (3.7V nominal) |
| Charging Port | Micro USB |
| Output | 5V USB-A output + 5V/GND pins |
| Switch | Built-in ON/OFF |
| Use Case | Arduino/ESP32 portable power, DIY power bank |
How to Use
- Insert one 18650 battery into the holder (check + / – direction).
- Plug a Micro USB cable into the charging port to charge the battery.
- Turn the switch ON.
- Use the USB output or the 5V/GND pins to power your device/project.
Important Notes (Good to mention in listings)
- Battery is not included. Use a quality 18650 cell (preferably protected, reputable brand).
- Power output depends on battery quality, load current, and boost efficiency.
- For high-current loads (motors, heavy LED strips), consider a higher-rated boost module.
No reviews for this component yet.
Related Components
