Solar Charging
The CASIO solar charging system
To ensure an efficient energy supply, CASIO uses its own solar charging system in various watch models. This system can convert light from various sources into energy, meaning that batteries need to be replaced less frequently and the watch can be used reliably for many years.
Tough Solar
The Tough Solar solar charging system developed by CASIO uses solar panels that can convert even light from fluorescent lamps and other artificial sources into energy, and stores the energy obtained in a rechargeable battery. This provides sufficient energy for energy-intensive functions such as measurements, radio reception, Bluetooth® connectivity, lighting and alarms. In addition, the watch has a power-saving function that is automatically activated when it is in darkness for a certain period of time.
Shadow-scattering solar panel
To reduce energy loss caused by the shadow of the hands, energy generation is distributed across multiple solar cells. This increases light absorption and ensures that sufficient energy is available for functions such as GPS reception. It also allows for the creation of dimensional dials with lower light transmission and designs with large hands and distinctive hour markers.
Solar charging via recessed dials
The dials also feature solar elements that absorb enough energy to reliably power the watch. This means there are virtually no restrictions on the design of the dial.
Solar-assisted charging
The watch can be charged via USB for training functions such as GPS tracking and heart rate measurement, as well as for smart functions such as notifications and step counters. The time display, on the other hand, is powered exclusively by solar energy – even when the battery is low.