The final price of a product usually reflects what they had to pay the actual manufacturer. Perhaps the price of lipos is increasing, and the 6500mah pack is newer.
The lipo market is akin to snake oil. So many brands inflate C ratings and capacity it's not even funny. I wish there were some sort of official benchmark that could be put into place to stabilize these ratings. I mean lets be real here. A 7000mah lipo rated at 100C should be able to burst at 700 amps. Do you really expect that to be a reality?
EDIT - This thread got moderated to hell and back, so my post makes no sense and is not in context any longer.
Last edited by 1967Typhoon; 06-22-2015 at 11:16 AM.