Nikon EN-EL 18c Rechargeable Lithium-Ion Battery (10.8V, 2500mAh)

Nikon MH-26 will charge EN-EL18 or EN-EL18C batterys

According to page 365 of the Nikon D850 DSLR Camera's User's Manual concerning the usage of the Nikon EN-EL 18c Rechargeable Lithium-Ion Battery (10.8V, 2500mAh), for still photography usage in single-frame release mode, one (1) Nikon EN-EL18c battery (used in the Nikon MB-D18) will give you approximately 3,300 shots; for still photography usage in continuous release mode, one (1) Nikon EN-EL18c battery (used in the Nikon MB-D18) will give you approximately 7,700 shots. For movie/video recording usage needs, one (1) Nikon EN-EL18c battery (used in the Nikon MB-D18) will give you approximately 145 minutes of HD footage.

Don’t know if this is THE battery Nikon has for the D6; but, I have a D5 and it will work. Have batteries from a D4, D4s, and now a D5- they all work great.

Yes

Yes, the Nikon EN-EL 18c Rechargeable Lithium-Ion Battery (10.8V, 2500mAh) is compatible with the Nikon Z9 Mirrorless Camera.

Yes, the Nikon EN-EL 18c Rechargeable Lithium-Ion Battery (10.8V, 2500mAh) is compatible with the Nikon MH-33 Battery Charger for EN-EL18d, EN-EL18c, and EN-EL18b Batteries.

With the purchase of the Nikon BL-5 Battery Chamber Cover for MB-D12 Battery Pack, B&H # NIBL5, yes, the Nikon EN-EL 18c Rechargeable Lithium-Ion Battery (10.8V, 2500mAh), B&H # NIENEL18C, may be used with the Nikon D810 DSLR Camera and the Nikon MB-D12 Multi Power Battery Pack.

This set up will add about another 5oz.