A bicycle light that includes a battery, a light source, a sound emitting device, and a control circuit is described. The light source when powered by the battery is capable of operating at a first power level and a second power level, where the second power level consumes less power than the first power level and where the first power level is associated with a first battery life threshold level. The control circuit is operable to detect that a remaining battery life of the battery has reached below the first battery life threshold level, cause the sound emitting device to emit sound when the remaining battery life of the battery reaches below the first battery life threshold level while the light source is operating at the first power level, and cause the light source to operate at the second power level upon detecting a user input.
Audible warning system for bicycle lights
2017-07-04
Patent
Electronic Resource
English