Lithium Polymer Battery Charger Circuit Diagram

This is a miniature single cell full integrated li ion and li polymer charge management controller.

Lithium polymer battery charger circuit diagram.

The battery charger circuit is designed for 7 4v lithium battery pack two 18650 in series which i commonly use in most robotics project but the circuit can be easily modified to fit in lower or slightly higher battery packs like to build 3 7 lithium. At the heart of the circuit is one microchip mcp73831 available in sot 23 5 package. Lithium polymer lipo battery is a type of rechargeable battery that provides high. This mcp73831 2 ic will give constant current and constant voltage for charging battery and.

Here is a tried and tested sample circuit of a li ion battery charger that can be used to charge any 3 7v li ion battery using a 5vdc usb solar panel power supply. 6v 24v 48v external battery charger control. In this project we will build a two stage battery charger cc and cv that could be used as to charge lithium ion or lithium polymer batters. A lithium polymer battery or simply a lipo battery is an advanced breed of the more popular lithium ion battery and just like it s older counterpart is specified with stringent charging and discharging parameters.

Referring to the shown lipo battery charger circuit diagram the entire design could be seen configured around the ic lm317. Li po battery or lithium polymer battery is a rechargeable battery based on the lithium ion technology enclosed in a flexible pouch. Here is a tried and tested sample circuit of a li ion battery charger that can be used to. This simple easy to construct li ion battery charger circuit is made with ic mcp73831 2 from microchip.

This soft flexible pouch makes them very light with a compromise in mechanical strength.