what voltage is a 6s right off the charger? how about a 7s off the charger. maybe you could wait a while or not charge it to 100% capacity and the voltage would be low enough. Or am i just smoking crack?
personaly all i need it to do is 16nimh. then maybe some of those li-ion sony cells. in a 5-6s2p config
A 6s is 25.2 volts fully charged so that only allows .8 of a volt before melt down.