could it be a defective mmm?

[revo madnesss]

i have been having very wierd probelms with my blur system in the vorza, it seems to take lots of power out of one battery in a very short period of time
i just went out wiht the vorza with freshly charged battery. for the first 10 seconds it was running normally but then after that the power decreased rapidly to a rate were the car was at a walking passe. at first i though it migh of been the throttle curve or somthing but then i checked the voltage's of the batterys and 1 battery was at 8.2v and the other at 6.7v (1st cell 3.29 and the 2nd at 3.41)!!!!

i have no idea how this could of happend and i am 100% sure that before i started they were both at 8.4v and perfectly balanced

this has happen to me on several occasions with different batterys but usual what happens is the car runs fine through the whole pack but when i go to charge it its below 6.2v!

can someone please help?

thanks