Concept Solar unfortunately missed after several months use

It's actually a good concept.
But first, my computer will from time to time not the sender.
Off and plug it back in, then it will work again.
Secondly, the battery after a 1-week "Little light phase" was empty and the mouse ran only with a battery used fresh.
This is certainly better.

Addendum:
In the company we use 3 Solar mice, and there have now all adopted by the solar principle.
First, they do not work for longer dark phases (Holiday and Storen below), with battery jump again, and can be loaded again, but not for long.
Then they work only with battery.

Thus, the concept has solar, which the manufacturer advertises clear completely missed.
Sorry, this is only one point, because there are all together after more months of use only banal wireless mice.

Nachtrag2:
Insistence by the manufacturer to take problem was not to say (probably they have already sold enough mice, and it is not necessary to act on answers, let alone)