Power droids were unsophisticated droids that acted as ambulatory batteries, recharging vehicles and machinery. They were equipped with a small, internal power generator, and several plug-in sockets.
Although they were extremely important to both military and civilian life, power droids were so commonly encountered in the galaxy that they often went unnoticed. The GNK-series by Industrial Automaton and the EG-series droid by Veril Line Systems were popular power droids. Both were commonly referred to as "gonks," after the low honking sound they emitted.
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