The Utra-Stinger is 75,000 cwp and works very well,one of the brighest flashlights I know of....costs around $140.00
They sell extra batterys, you can only buy from Streamlight, the batterys are sealed in a black sleve and cost around $50/70.00
I bought mine off the Mac Tools,Snap-on truck at work, you can find them on inter-net for less,there are two stingers the standard that is around 6 inchs long,50,000 cwp and the Ultra-stinger that is 12 inchs long.......And they have a kit to turn the 6 inch model to a Larger head and bulb to 75,000 cwp like the Ultra is.......
The 6 inch stinger will fit snugly in you jeans pocket where the 12 inch Ultra will fall-out every other step you take...............
I own 3 of them for work and Hurracanes.......the 6 inch stinger will last 1 hour and the Ultra will lase 1 1/2 hours on full charge, avarge charge time 6 to 8 hours when totally dead........
They also sell a speed charger for them, charges in an hour...
The kit come with the flashlight 2 chargers one 12 volt and 1 110 volt wall charger and mounting screws.....