Unfortunately constructed really wrong

I have not even bought on amazon the mouse, and it is almost impossible to me therefore to publish an opinion on this, I hope there is no one so wicked to me. I read in an English review allegations of the construction after my mouse has the spirit given up I've looked inside to understand what goes wrong. some write here that they do not charge if it is sometimes empty, that even with the battery inserted the mouse does not work after long and they are all right, it must even be by design so.
explanation: the mouse is a ansich for size enormously powerful lithium polymer battery with 1000mAh and 3.7V that'd be enough for nearly any smartphone easily. the solar cell depends as far as recognizable quasi directly at the battery, only reaches the solar cell at even bright artificial light the 3.7 Volt not where the battery would start in the first place take charge. in direct sunlight, it could work with difficulty, I shall in this case nor can I test a follow follow up on review if desired. anyway, is really just the solar cell undersized. then go the problems but on ... the mouse takes about 3 volts to operate, but the inserted battery has only 1.5V. why is on the board of a voltage converter makes the 1.5V battery just above 2.7 volts. the output from the voltage converter with the 1,7Volt depends then in parallel with the battery. translated for non-techies DAS is the optional battery insertable tried the built-in battery to charge what may seem sensible for a few seconds, but it's not because of the losses in truth. In addition, the on the main unit at the same time to load / off-switch according to the voltage converter and the battery, that is even with wacky mouse runs constantly hochzuwandeln the voltage transformer to the battery voltage and try to maybe dead battery. So as soon as the battery is damaged and has no tension and no longer want to take charge, blows the voltage transformer even with wacky mouse around the clock energy from the inserted battery in the broken battery until the battery is sucked. it's almost sad because of the processing provides the electronics in the device clean and professional built. the thing could live almost forever, and work wonderfully if the developers of the circuit would not have had seemingly no idea what they're doing. about that as a battery, a suitable charging electronic wants and but here the solar cell almost directly indiscriminately the voltage you the light intensity accordingly provides to the battery supplies could also complain about, but it does in many other made mistakes no longer any difference. really a shame about the poor thing. If anyone has such a mouse still geht- with good luck it can gutgehn if it is hardly used and is at every turn in the sun. If you, however, failed times, the battery is deeply discharged as I've seen and it's actually a dead end from which there is no turning back.