Bought this Fujitsu Battery Pack hoping for Panasonics, opened it up and found these Sanyo UR18650FM
All were around 2+ volts on opening. Been using them for 4 months and these batteries are great. Pulls 5 amp fresh off a charge on my modded HD2010, charges at up to 1.75A and still show capacity of 2400mah down to 2.9v @ 1 amp. Grab yourself a bargain!