Too funny...
I use a 8525 also. I took a fully charged battery out of my hermes and popped it into my 6700 but it still wont work.
I will take the 6700 apart again later and make sure I seated everything properly now that I know I have a good battery.
on the up side, the battery that was in the 6700 works great in my 8525
Thanks for the tips all, I will post results later!