True Spec Premium V2 7.4V-5200mAh-390PF/75C pack.    This new True Spec Premium V2 pack uses our new PF (power factor) rating to help our customers better understand the power/speed between the models we offer. More info will be posted soon on the Power Factor rating for all our packs.  True Spec Premium V2 cells come from one of the leading factories in China that uses quality materials that produce cells with low internal resistance.  This is the same factory that makes our popular True Spec Extreme Graphene cells.  

- Built with wide tab cells for lowest possible internal resistance.

- 12AWG wires soldered straight to the tabs.