7Semi Single Cell Li-Ion/Li-Polymer Charger Nano Module 4.2V 100mA

The 7Semi Single Cell Li-Ion/Li-Polymer Charger Nano Module (4.2V 100mA) is an ultra-compact charging module designed for safely charging a single-cell Li-Ion or Li-Polymer battery. It provides a fixed 4.2V charge voltage with a controlled 100mA charging current, making it suitable for small-capacity batteries used in compact and portable electronic projects. Its nano-sized design makes it ideal for space-constrained applications.

Technical Specification:

• Charge Voltage: 4.2V (for 1-cell Li-Ion/Li-Polymer batteries)
• Charge Current: 100mA
• Input Port: USB-C power input
• Battery Connector: JST-type single-cell connector
• Charging Status Indicator: LED for charging/fully-charged status
• Charge Management: Built-in constant-current and constant-voltage charging
• Over-charge protection and safe charging compliance
• Ultra-compact nano module form factor

Features:

• Very small and lightweight design suitable for compact devices
• Plug-and-play charging with USB-C input
• Safe, controlled 100mA charging suitable for small batteries
• Built-in charging controller handles CC/CV charging automatically
• Status LED for quick visual indication
• Easy integration in DIY, IoT, and wearable projects

Applications:

• Wearable devices and ultra-compact electronics
• Small IoT sensors and wireless modules
• Battery backup systems for microcontroller projects
• Portable gadgets requiring low-current charging
• DIY electronics and prototyping with single-cell Li-Ion/Li-Po batteries