Does solar charging still work?

I open this post to understand if Garmin's Solar devices have a solar charging capacity limited in time, coincidentally equal to the duration 
of the warranty.
My Instinct 2 solar was able to exploit the full solar charging capacity for about 25 months, after which the solar panels progressively lost 
efficiency over about 4/5 months and now I am not able to charge more than 5/6% even under full sun. Obviously my watch has not suffered any 
damage and the screen is still perfect. In the post I opened ( forums.garmin.com/.../instinct-2-solar-progressive-worsening-of-solar-intensity- and-solar-charging-capacity ) 
another user also had the same problem two years after purchase.... planned obsolescence? Once the warranty has expired, Garmin only offers paid repairs.
 Has any other user had a similar experience with other Garmin solar devices? 
I'm also asking because I recently purchased an Edge 540 solar and I would like to know if it is destined to stop charging with sunlight when 
the two-year warranty expires.

0 aweatherall 4 months ago

There is no time limit on the solar charging. I have units from when they were first released that still charge the battery from the solar screen.

0 Geppy75 4 months ago in reply to aweatherall

I hope so, on the Instinct 2 solar post there are currently three of us
 who have had the malfunction, two immediately after the second year and
 in one case after just over a year. If no other Garmin solar device has 
experienced this problem, it could be a defect of the first generation
 Instinct 2 which, however, Garmin does not intend to recognize at the moment