// 01

Description

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.

// 02

Specifications

Slots 1x 18650

Outputs 5V USB + 3.3V pins

Charging Micro USB

Version V8 shield

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