LiPoly Charger - Single Cell 3.7-7V Input

This is a Polymer Lithium Ion battery charger based on the MAX1555 IC. This charger uses either USB bus power (MAX1555 internally limits this to 100mA) or 2.1mm center positive wall-wart power (MAX1555 internally limits this to 300mA). Current is automatically shut off when charging is complete. Cheap, easy to use, and flexible, this board serves as a great demo board for the MAX1555. This charger is a 'must have' for quick and clean charging of Lithium Polymer chemistry batteries.

Intelligent IC monitored charging - Constant current/Constant Voltage

Do not use this charger to charge NiMH, NiCd, or any other battery type

Comes fully assembled and tested

Single Cell Charger

Requires 3.7V to 7V(max!) Input

MAX1555 will automatically choose the wall-wart charging if both USB and barrel jacks are connected to power

Separate header for external power in

Separate headers for battery and load system so batteries don't have to be removed for charging

Reference:

Datasheet

Schematic

MAX1555 Datasheet