We all discard our old mobile phones, almost every year. There are so many components that can be recycled or reused
The mobile battery has built-in battery protection, light weight and good capacity.
We can use these batteries in many projects example power bank, reading lights or as power source for Arduino or Esp8266 projects...
I am sharing how I made a slimmest power bank that can be used as reading light aswell
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Step 1: What Do We Need ?
- 3.7 to 5 v step up converter
- old Li-ion battery from old phone
- USB led light
- PVC sheet
- Electric tape
- double side tape
- Soldering iron
- Wire cutter
- hot glue gun
Step 2: Build It
Since the battery already has a charge protection circuit a simple TP4056 module is enough.
Solder + and - terminals of battery to TP4056 and Step-up converter with a switch
Hot glue all on a PVC sheet of appropriate size, depending on the side of your old battery
that's it, it is quite simple
Step 3: Testing
It can be used as power bank and reading light
Just attach an USB Light out it and try it.
- higher capacity battery
please share comments, if you liked this recycled power bank