In this post you will see how to quickly and easily set up a LiFePO4 Battery/Power Pack with a cheap module from China! The LiFePO4 (lithium iron phosphate) battery, also called as lithium ...
For the cell phone to charge, charger output must be above 4V and can deliver a maximum current of 500mA. This charger circuit will step up the voltage from 1.5V to 5V DC to reach the cell phone ...