First, thanks for your answers aquatint and dbjmaster
Yes, problem started when I upgraded to 2004.6, but I have reinstalled the 2004.5 version and problem still continue.
It's a great notice that li-ion is protected against overcharge, but I don't understand the reason of this fault.
I'll try to discharge the battery at all and charge it. If I find a solution, I'll post in the forum. Other ideas are accepted.
Thanks.