How to Use Phone Without Battery

I made this for my next project.

https://www.instructables.com/id/Install-phone-into-car-dashboard-Subaru-Legacy

How to connect phones with 4 pins, take a look into comments.

I took pins from SD card adapter and glue them with Super Attak glue on piece of wood.

I used 82kΩ resistor.

After couple of months I can say this is perfect power supply. It has enough power and it does not go hot! I bought it on Ebay for some bucks

Lithium Charger Step down 5A 5V-32V to 0.8V-30V Power Supply Module LED Drive 5A

http://www.ebay.com/itm/Lithium-Charger-Step-down-...

www.instructables.com/diy-master