I was told that when the solar ability stops charging the battery, the keyboard becomes literally disposable. Is that true?

Logitech Wireless Solar Keyboard K750

Logitech Wireless Solar Keyboard K750

Product No Longer Available

2 Answers from the Community

  • Answer

    The battery is replaceable with an ML2032. Getting it out is tricky. However, as your question implies, is keyboard failure a result of the solar panel failure or a worn out battery? I replaced my battery yesterday and still no charge. Others have had success. I'm thinking mine might be disposable.

  • We have over 100 K750 keyboards at my work (Windows version, though). We've only had two keyboards go out of service in 4 years. One had worn out keys, and another had a broken key. Both keyboards still functioned fine, though. Never had an issue with them not charging.

    My guess is that when the battery does go dead from lack of light, it takes the keyboard a long time to revive it. Mine spent 2-3 days under strong light before the keyboard (which sat unused for almost a year in a dark room) would come back to life. Once it turned on, it took another day or two under LED lighting to fully recharge. This keyboard is now almost 5 years old and still works as good as the day I bought it.

    However, if the solar is truly unable to revive the battery and keep a replacement charged under good light, then put black tape over the solar cells and pop a regular CR2032 battery in. Or, if you're handy, tear the keyboard down and make sure the wires didn't break between the cells and the main board.