1 Way 18650 Battery Shield 5V 3V USB Power Module Arduino ESP32

🔧 1 Way 18650 Battery Shield Power Module | AuscomTech

This 1 way 18650 battery shield is a compact lithium power module designed for portable electronics and microcontroller projects.

It provides regulated 3V and 5V outputs, onboard Micro USB charging, and a USB 5V output port for compatible devices.

Typical use includes Arduino, ESP32, ESP8266, sensors, wireless modules, and small DIY battery-powered builds.

⭐ Key Features

• Single Cell Design – holds 1 × 18650 lithium battery for compact portable power projects
• Dual Output Rails – provides 3V and 5V outputs for common electronics modules
• USB Output Port – onboard Type-A USB port for 5V device output
• Micro USB Charging – supports charging through a standard Micro USB input
• Output Control Switch – onboard switch controls the output operating mode
• Battery Protection – includes overcharge and over-discharge protection circuitry
• Status Indicator – LED indication shows charging and full-charge condition
• Breakout Pads – multiple 3V and 5V output pads for wiring into projects

📊 Technical Specifications

• Product Type: 18650 lithium battery shield module
• Battery Slots: 1 × 18650 cell
• Charging Input: Micro USB
• Input Voltage: 5–8V
• Charging Current: 600–800mA
• 3V Output: 3V / 1A
• 5V Output: rated 5V / 2.2A
• Maximum 5V Output: up to 3A peak, overload not recommended
• Output Ports: 3V pads, 5V pads, USB 5V output
• Switch Modes: NORMAL / HOLD
• Approx. Board Size: 99 × 29.5mm
• Compatible Boards: Arduino, ESP32, ESP8266 and similar low-voltage electronics

🧩 Typical Applications

• Arduino portable power projects
• ESP32 and ESP8266 battery-powered builds
• DIY power bank experiments
• Sensor modules and wireless nodes
• Robotics and embedded electronics
• USB 5V output testing

📦 Package Includes

• 1 × 1 Way 18650 Battery Shield Power Module

🔗 Recommended Accessories (Not Included)

• 18650 lithium battery – required power source
• Micro USB cable – charging connection
• Dupont jumper wires – project wiring
• Arduino, ESP32 or ESP8266 board – typical powered device

⚠️ Important Safety & Warranty Notes

• 18650 battery is not included.
• This is an exposed electronics module, not an enclosed consumer power bank.
• Battery polarity must be checked before use. Install the cell exactly according to the + and – markings on the PCB and holder.
• Incorrect installation can cause immediate failure. Reverse polarity may rapidly overheat and burn the IC/components on the underside of the board.
• Short circuits can cause fire or injury. Do not allow battery terminals, output pads, USB contacts, loose wires, screws, tools, or conductive items to bridge together.
• Use only on a non-conductive surface and inspect for damaged battery wraps, loose wire strands, solder bridges, or debris before powering.
• Do not leave unattended during first use or charging. Test away from flammable materials.
• Stop immediately if heat, smoke, smell, discoloration, swelling, or melting occurs.
• Burnt, melted, fire-damaged, overheated, or visibly damaged modules are not covered by warranty where caused by reverse polarity, short circuit, incorrect wiring, overload, damaged batteries, or user installation error.
• A burnt IC or heat-damaged underside is treated as a clear sign of incorrect installation, short circuit, overload, or misuse.
• Lithium batteries can be hazardous if misused and may cause burns, fire, personal injury, or property damage.