May 20, 2024

How to make a mobile power bank

1. Materials and tools

material:

1500mAh mobile phone battery X2

MC34063 3V liter 5V board X1

TP4056 Lithium Battery Charging Board X1

USB female X1

How many panels are left for decoration

tool:

Electric soldering iron

Hot melt glue gun and glue stick

Utility knife

File

AB glue

scissors

And a pair of dexterous hands (this is a must drop)

Two, production and testing

Put the material in a shape first, and record the length, width and height to cut the board

How to make a mobile power bank

Then start cutting

How to make a mobile power bank

How to make a mobile power bank

How to make a mobile power bank

The next step is to solder, connect the parts together with wires

How to make a mobile power bank

How to make a mobile power bank

How to make a mobile power bank

Glue the boards together with hot melt glue

How to make a mobile power bank

How to make a mobile power bank

Test it, use a USB light

How to make a mobile power bank

How to make a mobile power bank

How to make a mobile power bank

How to make a mobile power bank

Pouring AB glue in the hole of the net indicator light can create a dim light

Finally it’s finished. Use a file and a utility knife to trim the corners to make it more rounded.

Because I forgot to consider the thickness of the board, I re-cut it several times and I was exhausted.

Try plugging in a USB fan

How to make a mobile power bank

Then charge it, the red indicator light is on

How to make a mobile power bank

After a few hours, the battery is fully charged and the green light is on

How to make a mobile power bank

Three, summary and perception

This time the production is finally completed, because the 34063 is used, the current can only reach 300~400mA

What makes me depressed is that the booster board of the kit can reach more than 300 mA and almost does not generate heat, but the self-made one can only reach 200 mA and has a huge heat.

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