BM Premium 2 Pack of EN-EL18D Batteries and Battery Charger for Nikon Z9, D4, D4S, D5, D6 Digital SLR Cameras and Compatible with Nikon MB-D12, MB-D17, MB-D18 Battery Grips

The BM batteries are recognized by my Nikon Z9 with firmware 3.1 and the just release firmware 4.0. The BM batteries charge to 100% as indicated in the Z9. The battery charger fully charges the BM batteries and a genuine Nikon EL-EL18D, and all are recognized as 100% by the Z9. I do not yet have a sense of the longevity of a charge on the BM vs Nikon batteries. So far, at least thru firmware 4.0, it seems I've found affordable spare batteries, and have a charger I can leave in my travel gear.

Both batteries didn't work for my Nikon z9

Unlike the single charger that came with my Nikon Z-9, it has the ability to recharge two. I now know, I will always have a backup should I need one.

Like being able to charge 2 batteries at once. Batteries work well in my Z9, great deal compared to buying Nikon batteries.

I just want to take a moment to say the customer service for this product was A+++++.I was not assembling the unit correctly and it was not working, they troubleshoot with me to get the item working and it is awesome! Charges two batteries quickly. Very pleased with my purchase.The batteries work great with my new Nikon Z9.

I recently bought this and have had a positive experience with it. Great packaging, nothing damaged. Both batteries charged up and work great in the camera. Love the European adapter to charge it as well as the car charger adapter. Great product.

Fully charged both batteries with included charger, tried both batteries and the battery icon has no bars and just flashes. Was trying to use in MB-D18 grip, which it claims to work with.

WHY Nikon went to chargers with only one slot for the Z9 is dumbfounding - pros need two! This fits the bill, works great, easy to use, now have 4 charged up every game.