The WB30P offers a recycle time of just 0.01-1.5s with up to approximately 320 full power flashes.

Specification:

14.4V / 2600mAh Lithium-ion Battery

Size: 2 13/16 x 2 13/16 x 1 9/16 (71x71x40mm)

Weight: 7.5oz (214g)