This is a compact Li-Po battery charger, using a Microchip MCP73833 Linear Charge Management Controller. It draws power through a mini-USB port and has three status LEDs. This charger works with batteries up to 5000 mAh.
A lithium-polymer or lithium-ion battery is attached via either a JST 2.0mm connector or via pin pads on the board. By default, the charge current is 470mA. This can be changed to 100mA by cutting a trace. The board has a pin pad for providing Thermistor Input to the MCP73833's THERM pin.
Instead of requiring a PC's USB power, you might consider the TOL-11456 wall-mount 5V, 1A power supply that uses a USB cable for delivery.
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