Nikon MS-D12EN Rechargeable Lithium-Ion Battery Holder

The Nikon MS-D12EN Rechargeable Lithium-Ion Battery Holder allows users of select Nikon DSLRs with battery grips to use an EN-EL15 rechargeable lithium-ion battery instead of eight AA batteries. Also, you can keep an additional MS-D12EN battery holder pre-loaded, so that you can quickly swap out battery sets.

Compatibility
MB-D12 Multi-Power Battery Pack for D800, D800E, D810, and D810A
MB-D17 Multi-Power Battery Pack for D500
MB-D18 Multi-Power Battery Pack for D850