AA 4-Pack Rechargeable Batteries by Pale Blue4 Pack of AA Batteries ( By 2 Packs or more and Save Automatically ) Designed to outperform AA alkaline batteries Fast charging with a USB C port on each AA rechargeable battery. Easy to use, the included charging cable can charge four batteries at once Each rechargeable AA battery can prevent up to 1,000 single use batteries from being thrown away. What Devices Can Rechargeable Batteries Be Used In? Common household uses for AA batteries include