I have seen projects connecting Servo Motors externally on 4x AAA batteries.
But I did not find one connecting to 2x 18650 batteries, why ?
In the image, could I change the Servo Motors power for 2x 18650 batteries without problems?
The servo motors are: TowerPro SG90 Mini Gear Micro Servo 9g For RC Airplane Helicopter Sale - Banggood USA
And the 18650 batteries are: BAK B18650CA Cell Specifications | Second Life Storage & Solar