The redesigned indra360 battery pack is small enough to be slipped into a pocket and can power the indra360 ttl through 300 full power shots perfect for fast moving event photographers and photojournalists the 4000 mah indra360 battery pack is a one piece unit led display provides instant visual feedback on power remaining package includes phottix indra360 4000mah li ion battery phottix indra battery pack ac charger with ac power cable