I emailed Surefire and got a very prompt response back this is what they said about it. Thanks Greg.
Dear Sir, My apologies; The solid-green indicates an 85% charge. Blinking green indicates that the battery has hit 100%, and is currently trickle-charging. Thank You Greg Lin Technical Support Representative SUREFIRE, LLC
17680 Newhope St. Suite B I Fountain Valley, CA 92708 I U.S.A. T 714-545-9444 ex. 5168 F 714-545-9537