Bought this Nikon Photomic recently and it came with these battery adapters. Put some new lr44 batteries in it and saw some slight movement with the light meter, which game me hope
Batteri til EN-EL15 ENEL15 f. NIKON V1 D7000 D800 D800 Z6 Z7 - Nikon - BatteryStore & More
Amazon.com : Meike Vertical Battery Grip for Nikon D5500 Built-in 2.4G LCD Display Wireless Remote Control Compatible with EN-EL14 Batteries : Electronics
Batteri, Nikon, EN-EL3e – dba.dk – Køb og Salg af Nyt og Brugt
Find Nikon Batteri på DBA - køb og salg af nyt og brugt
Battery Grip For Nikon F601/f-601/n6006 Film Camera. Free Shipping - Battery Grip - AliExpress
File:Nikon D600 med batterigrepp.jpg - Wikimedia Commons
Amazon.com : Meike Vertical Battery Grip for Nikon D5500 Built-in 2.4G LCD Display Wireless Remote Control Compatible with EN-EL14 Batteries : Electronics
Amazon.com : Meike Vertical Battery Grip for Nikon D5500 Built-in 2.4G LCD Display Wireless Remote Control Compatible with EN-EL14 Batteries : Electronics