The MB-D18 Multi Battery Power Pack can be powered either by six AA batteries (Alkaline or Ni-MH or Lithium), EN-EL15(a)(b) or EN-EL18a/b/c rechargeable Li-ion batteries. To use the MB-D18 with AA batteries, use the supplied MS-D12 AA Battery Holder. When using EN-EL15(a)(b)(c) batteries to power the MB-D18, use the supplied MS-D12EN Battery Holder. When using an EN-EL18(a)(b)(c) battery to power the MB-D18, use the optional BL-5 battery chamber cover.
* MH-26aAK charger not included with EN-EL18(a)(b)(c) battery