CR2 Rechargeable Batteries and Charger, JESSPOW 450mAh 3.7V CR2 Battery, 8 Pack RCR2 Rechargeable Batteries for Golf rangefinder, Telescope, Electric Toys, Smoke Alarm and More(Not for Arlo Camera): Amazon.co.uk: Electronics & Photo
Amazon.com: Taken CR2 Rechargeable Batteries with Charger, 3.7V 450mAh CR2 Battery, 8 Pack RCR2 Battery with 4-Ports Charger (Not for Arlo Batteries) : Electronics