batteryless
Needs no charging
Batteryless describes devices that operate without batteries, drawing power from alternative sources like solar cells, kinetic energy, or electromagnetic fields: batteryless sensors, a batteryless remote control.
The term appears in technical contexts where eliminating batteries reduces maintenance, cost, or environmental impact.
Energized by sunlight
- kineticRelating to motion
- piezoelectricCharge from deformation
- thermoelectricHeat-to-electricity converting
- electromagneticInvolving electric and magnetic fields
Manual rotating handle
- wind-upFinal part or end
- hand-poweredOperated by human force
- pedal-poweredPropelled by foot crank
- treadleFoot-operated lever
pump · lever · squeeze · push-button · foot-powered · clockwork · flywheel · self-winding
Having no motor
- powerlessLacking strength or authority
- always-onOperating without pause
- off-gridWithout utility connections
- self-sustainingAble to continue independently
Capable of restoration
- greenColor of vegetation
- eco-friendlyNot harming the environment
- zero-wasteNo garbage produced
- carbon-neutralNet-zero emissions state
Without attached wiring
- untetheredNot fastened to anything
- portableAble to be carried
- standaloneComplete without attachments
- mobileCapable of movement
Persisting over extended time
- durableAble to withstand use
- reliableConsistently performing as expected
- hassle-freeWithout difficulty or annoyance
- low-maintenanceRequiring little care
solar-powered
Energized by sunlight
- kineticRelating to motion
- piezoelectricCharge from deformation
- thermoelectricHeat-to-electricity converting
electromagnetic · induction · dynamo · human-powered · regenerative
hand-crank
Manual rotating handle
- wind-upFinal part or end
- hand-poweredOperated by human force
- pedal-poweredPropelled by foot crank
treadle · pump · lever · squeeze · push-button · foot-powered · clockwork · flywheel · self-winding
unpowered
Having no motor
renewable
Capable of restoration
- greenColor of vegetation
- eco-friendlyNot harming the environment
- zero-wasteNo garbage produced
cordless
Without attached wiring
- untetheredNot fastened to anything
- portableAble to be carried
- standaloneComplete without attachments
long-lasting
Persisting over extended time
- durableAble to withstand use
- reliableConsistently performing as expected
- hassle-freeWithout difficulty or annoyance
batterylessbattery-powered
Energized by cells
battery-operated · rechargeable · cordless · electric · powered
less, battery, batter, batteries, battering, battery-operated, battery-powered