Review on Fosmon Dual 2 MAX Charger for Xbox Series X/S (2020) & Xbox One Controllers - High Speed Docking & Rechargeable Battery Packs - White by Mary Medema

Although the image shows a new controller, it is not compatible. I have to hold down the controller to keep it charged because the device is so poorly constructed that placing it on the charger as shown in the picture is not enough to connect the battery to the charger. The battery works in the new controller, but to charge it you have to remove the batteries and put them in the old generation controller for it to work. Legacy controllers fit the product perfectly, snapping in and charging effortlessly. The latest controllers are not compatible. This ad is misleading and now I have to make an effort to get my money back. 1 star for misleading and sloppy advertising that made me buy a completely useless product with my new controller.