Amazon.com : Arlo Rechargeable Camera Battery - Arlo Certified Accessory - Works with Arlo Pro 5S 2K, Pro 4, Pro 3, Ultra 2, and Ultra Cameras - VMA5400 : Electronics
Amazon.com : Arlo Rechargeable Battery - Arlo Certified Accessory - Replacement Battery, Requires a Pro or Pro 2 Camera or Compatible Charging Station to Charge, Works with Pro and Pro 2 Only - VMA4400 : Electronics
Rechargeable Lithium-ion Battery for Arlo Ultra and Pro 3 Wire-Free Security Cameras - Walmart.com