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Step 10: BOOST+CHARGING MODULE

Picture of BOOST+CHARGING MODULE
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This is a module which I took out of a cheap single cell power bank. This module has both battery protection circuitry as well as a 5v, 1 amp boost converter. It also has an ON/OFF push button that can be used as the power switch for the entire project. The female USB port on the module was removed using a soldering iron and two wires were soldered to the +5v and ground terminals as shown in the 4th picture.

Solder 2 male header pins to B+ and B- as shown in the first two pictures and then check if the module works with the batteries.

Apply instant glue on the platform provided for the module and place the module gently making sure the charging port and the opening provide for it is aligned perfectly.