Replacement battery body for the indra battery pack 5000 mah when used with the 5000mah cell the indra500 ttl monolight it allows photographers to shoot 360 full power shots high speed mode its dual power ports can power two indra500 ttl monolights simultaneously perfect for on location work the battery packrsquos usb charging port allows for easy charging of smart phones or tablets the indra battery pack can also power hot shoe flashes with cables compatible for phottix canon nikon