Thanks for the answers
I made a copy of these batteries
http://cgi.ebay.com/Intellect-Batter...QQcmdZViewItem
To check if they would fit, and there seems to be no problems.
Now, can 9.6v batteries damage my airsoft? I installed/going to install a guarder SP-110 spring, bearing spring guide, guarder steel gears, metal bushings, guarder cylinder, sorbo piston head with sorbo cylinder head, how much rof should i go for, without damaging it quickly.