But my new electric screwdriver has big problem at least for me.
When I push at top of the switch it unscrews but I used to screw when I push top...
This instructable for swap the screwdriver rotation. Screw for top, unscrew for down.
Remember, this instructable will VOID YOUR WARRANTY.
You need soldering iron for make this project.
Here some shots from cheap Chinese e-screwdriver.
Step 1: Unscrew the Electric Screwdriver
Pay attention to hidden screw under label.
Step 2: Inspection of Device Internals
I notice Li-Ion battery is only 850 mAh.
If you need longer runs, you can order 2500 mAh version for ~ $3,5.
Step 3: Swaping Connections
Than unsolder & resolder swapped motor connection cables.
Try if device works as needed before closing device.