Share your experience!
Is there any problem to keep my Vaio with the battery connected whyle I use the external eletricity ??
Hi rafaell,
Li-Ion laptop batteries have built-in controller chips which prevent it from overcharging, so no there is not a problem keeping your battery attached.
You may find this link on batteries of interest. 
very nice link;
You live and learn ^^
Martin
Hi Martin,
Glad you liked the link 