Kastar NP-FZ100 4-Pack Batteries + LKD2 USB Dual Charger — Compatible with Sony Alpha A7R IV α7R IV, Alpha A7R IVA α7R IVA, Alpha A7R IV (A) α7R IV(A), A7R4 α7R4, Alpha A7C α7C, Alpha A6600 α6600

Includes four Kastar NP-FZ100 lithium-ion replacement batteries (7.2V, 2280mAh) and the compact Kastar LKD2 USB dual charger. The LKD2 can charge two NP-FZ100 batteries at the same time, making it convenient for travel and extended shooting sessions. Charger Input: 5V 2A 10W. Charger Output: 8.4V 650mA(x1) 650mA(x2). An intelligent LED indicator shows charging progress and battery capacity. Multiple input options are supported—Micro-USB and Type-C—and a Micro USB cable is included.