@FLCH2
Hey,
This is an English speaking forum, please use english to make it easier for everyone to understand (and answer you), don’t hesitate to use a translator if you don’t think you can do it, but don’t put the burden on the whole forum to translate your post.
Your battery may be miscalibrated, you should let it run completely empty, put it on the charger, wait until it reaches 100%, and wait 2 hours more to be sure its really completely charged, then you use it again down to 0% and you should be good to go…probably ?
2-3 days is really really low, so you may have a bigger underlying issue, if that didn’t work, your best bet may be to send it back for service.