Unfortunately if you don't use your keyboard for some time your battery discharge rapidly.
So i decided to insert a power switch and a LED indicator to save battery life.
What you need:
- soldering iron
- electric cable
- little electric switch
- LED (i used 3mm diameter)
- 470 ohm resistance (depending of the type of LED used)
Step 1: Removing screws
Remove them and remember their position (the screws are not all equals)