The MB-D18 Multi Battery Power Pack can be powered either by six AA batteries (Alkaline or Ni-MH or Lithium), EN-EL15(a) or EN-EL18a/b 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) batteries to power the MB-D18, use the supplied MS-D12EN Battery Holder. When using an EN-EL18b battery to power the MB-D18, use the optional BL-5 battery chamber cover.
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