The battery is made to the exact specifications of Nikon NP-FZ100 battery and is compatible with Nikon D7100, D750, D7000, D7200, D7500, D810, D610, D800, D850, D600, D800e, D810a, etc. Triple your camera's runtime with the ultra-long life battery. A complete backup package includes two replacement batteries and a dual battery charger to keep the empty ones charged. A common micro-USB input and the ability to charge with a USB wall charger, car charger, or external battery give you more options than a standard battery charger Built with multiple circuit protections, this fire-resistant charger switches to trickle charging when it reaches 90% battery capacity and the indicator turns green.