Adjective
self-powered (not comparable)
Powered by itself without requiring an external power source.
Also, most modern combines are self-powered (usually by a diesel engine) and self-propelled, although tractor powered, pull type combines models were offered by John Deere and Case International into the 1990s. Source: Internet
After they’re up and running, solar lights are self-powered, self-regulating, and won’t add to utility bills. Source: Internet
A nanoscale enzymatic biofuel cell for self-powered nanodevices have been developed that uses glucose from biofluids including human blood and watermelons. Source: Internet
With award-winning self-powered speaker designs that bring movies, video games or music to life, HARMAN offers market leading personal audio solutions. Source: Internet
Racers then switch from their bikes to the self-powered water craft of their choice (most use kayaks but the occasional standup paddle board or canoe has been spotted in years past). Source: Internet
Rotary guns are less prone to jamming than a gun operated by gas or recoil, as the external power source will eject misfired rounds with no further trouble, but this is not possible in the rare cases of self-powered rotary guns. Source: Internet