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 Then start cutting The next step is to solder, connect the parts together with wires Glue the boards together with hot melt glue Test it, use a USB light 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 Then charge it, the red indicator light is on After a few hours, the battery is fully charged and the green light is on 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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