Although your cell phone battery can become electrically charged, this is not what is important when you 'recharge' the battery. What is the important effect for the operation of your cell phone?
A. The battery's electric potential energy is increased.
B. The battery's gravitational potential is increased.
C. The battery's electric potential (AKA the voltage) is increased.
D. The battery's momentum is increased.
E. The battery's kinetic energy is increased.