Power unit

"Ready for some power?"

- Luke Skywalker to R2-D2 on Dagobah

A power unit, also known as a recharge unit, was a device used to recharge droids. They were presumably immobile versions of power droids.

R2-D2 recharged himself using a power unit at the Lars homestead after being purchased by Owen Lars, and later with a portable unit brought to Dagobah prior to Luke Skywalker's apprenticeship to Yoda.

Appearances

 * Star Wars Episode IV: A New Hope novelization
 * Star Wars Episode V: The Empire Strikes Back