With the Multi-Power High-Speed Battery Pack MB-40, eight 1.5V AA-type alkaline-manganese, Ni-MH, lithium, or one optional Rechargeable Li-ion Battery EN-EL4 (with optional Battery Chamber Cover BL-3) can be used to power the F6. Film advance speed increases up to 8 fps in continuous high-speed film advance mode. The Multi-Power High-Speed Battery Pack MB-40 is equipped with an extra shutter release button, the Main-and-Sub-Command dials, AF start button, multi-selector and multi-selector lock lever for taking photographs in vertical (portrait) orientation.