Here is another Nikon Z9 third-party battery option – ProMaster Nikon EN-EL18D 3300 mAh Li-Ion battery (available for sale at Service Photo): There are a few more Z9 third-party battery options: Power2000 ACD-800 battery Wasabi BTR-ENEL18D battery Kastar BA-2B-ENEL18D battery The original Nikon EN-EL18D battery for Z9 is currently in stock at: Adorama Amazon B&H … Continue reading Another Nikon Z9 third-party battery option: ProMaster Nikon EN-EL18D 3300 mAh Li-Ion battery