USB to phone battery charger circuit Schematic Diagram


Posted on Feb 6, 2014

Without any USB to phone battery charger circuit we can charging phone battery using port on USB computer, but it will quickly damage the phone battery, and the battery will bulge. Because the voltage which was issued on usb is 5 volts, while the average-voltage phone battery 3. 5 - 3. 7 volts. That`s why this USB to phone battery charger circuit


USB to phone battery charger circuit Schematic Diagram
Click here to download the full size of the above Circuit.

is required, this USB to phone battery charger circuit reduce votlage to 3. 7 volt usb, but will not reduce currents and will make a durable phone battery.




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