1 Battery shield

18650 Battery Shield V3 Module (Charger & Power Bank)

This module is a power management and holder board designed to work with a single 18650 lithium-ion battery cell. It is commonly used to create a portable, rechargeable 5V power supply for DIY electronics projects or to serve as a compact power bank.

Key Features and Components

• Battery Type: Designed exclusively for 18650 Lithium-ion batteries. The markings "18650 Battery" and "Shield V3" are visible on the board.
• Charging Input: It includes a small Micro-USB port for charging the installed 18650 cell.
• Power Output: Features a standard USB-A female port labeled "Output," allowing it to function as a basic power bank to charge or power external 5V devices.
• Output Voltage: Provides a regulated 5V DC output via the USB-A port and dedicated solder pads.
• Connection Points: The board includes multiple soldering/connection pads for integration into projects:
  • 5V Output Pads: Clearly marked "5V" and "GND" pads are available on the sides, providing direct access to the regulated 5V power rail.
  • Battery Pads: The large main slot has designated areas for the battery's "+" and "-" terminals.
• Protection: As a "Shield" or power management module, it likely includes basic overcharge and over-discharge protection for the 18650 cell (though specific protection circuitry should be verified in a datasheet).
• Switch: Includes a slide switch marked "ON/OFF" for controlling the 5V power output.
• LED Indicator: A small LED light (likely a charging or power indicator) is located near the Micro-USB port.