Batteries

Hey, guys I just got the batteries and I have some bad news. They weigh WAY TOO MUCH!
I don't know exactly how much, but I am going to find out by tomorrow. It seems like they can way up to 1 pound each or even more! On the box it doesn't say anything, I looked everywhere.
The good thing is that they are still the same voltage and current and the chargers are pretty sweet. I am concerned that that is going to screw up all our calculations and the levitation fans. So if you haven't ordered the new ones yet DON'T. Otherwise I am very sorry. Even I did not expect them to wiegh that much.
Misha