Solar Power for Ring Video Doorbell 2

I have installed Ring Video Doorbell 2 on my gate fence. I planned to buy Solar Power for Ring Video Doorbell 2 - [https://au-en.ring.com/collections/accessories/products/solar-charger-2-for-video-doorbell-2](https://au-en.ring.com/collections/accessories/products/solar-charger-2-for-video-doorbell-2) Question: Do I need to dismount my current Ring Video Doorbell 2 on my gate to install the Solar Power? Or I can install the Solar Power kit without dismounting? Thanks in advance for your help :)