The CD42 Lithium Battery Boost & Charge Module is an integrated power management solution designed for single-cell 3.7V lithium-ion and lithium-polymer batteries. 5V DC (via onboard Type-C or Micro-USB port) · 5.0V DC (±0.1V) · 2.0A continuous boost output.
The CD42 Lithium Battery Boost & Charge Module is an integrated power management solution designed for single-cell 3.7V lithium-ion and lithium-polymer batteries. Powered by the IP5306 multi-function SOC chip, this board combines a high-efficiency synchronous switching charger and a 5V boost converter on a single compact PCB, eliminating the need for separate charging and step-up boards.
Capable of delivering a stable 5V output at up to 2A, the module provides reliable power for microcontrollers, sensors, and mobile devices. It features integrated 4-level LED battery level indicators, auto-load detection for instant power delivery upon connecting a load, and soft-start capability. Onboard safety circuitry includes over-charge, over-discharge, short-circuit, and over-current protection to preserve battery life and prevent damage to connected hardware.
This module is widely used for building custom power banks, portable IoT devices, battery-backed Raspberry Pi and ESP32 setups, and wireless sensor nodes. It features clearly labeled through-hole soldering pads (B+, B-, V_OUT+, V_OUT-) alongside Type-C / Micro-USB input options, making it fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, and general DIY electronics projects.
| Core Controller | IP5306 Multi-Function Power Management SOC |
|---|---|
| Input Voltage | 5V DC (via onboard Type-C or Micro-USB port) |
| Battery Compatibility | 3.7V / 4.2V Single-Cell Lithium-Ion / LiPo (18650, pouch cells) |
| Output Voltage | 5.0V DC (±0.1V) |
| Maximum Output Current | 2.0A continuous boost output |
| Charging Current | Up to 2.1A adaptive switching charge |
| Conversion Efficiency | High-efficiency synchronous boost (up to 92%) |
| Status Indicators | 4 onboard LEDs for battery level display (25%, 50%, 75%, 100%) |
| Built-in Safety Features | Over-charge, over-discharge, short-circuit, and over-current protection |
| Auto-Load Detection | Automatic power-on when load is connected & low-power standby mode |
What is the operating voltage?
5V DC (via onboard Type-C or Micro-USB port).
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, ESP8266, Raspberry Pi projects.
Can I buy the CD42 Lithium Battery Boost & Charge Module in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
