How should I charge my solar-powered watch?

Charging the watch

Your solar watch can be charged by solar (natural daylight) or electric light power and we recommend you charge your watch for three to four hours every week. When your watch is fully charged, it can run for up to six months.

When charging with a lamp, you should place it three inches (8cm) above your solar watch to generate the required 10,000 Lux (amount of light power emitted from bulb) needed to charge the watch.

Avoid getting your watch too hot when charging it, as it could permanently damage it.

When the battery is low

The watch has a low battery alert and will make a beeping sound before it announces the time or date. If the battery level is low the second hand jumps two steps every two seconds and all function buttons and the signal reception will eventually stop. 

If the battery is not charged, eventually the hands will stop at the 12 o'clock position to save any remaining battery power.

Recharging time

The charging time depends on the strength of light applied and is measured in Lux (amount of light generated). From a low battery to fully charged is approximately:

  • 10,000 Lux (under a lamp) = 80-90 hours
  • 30,000 Lux (under direct sunlight) = 45-65 hours

It may take up to 90 hours to fully charge your watch if the battery is very low.

For more information and advice regarding your solar powered watch please contact our Helpline:

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