AAA 4-Pack Rechargeable Batteries by Pale Blue4 Pack of AAA Batteries ( By 2 Packs or more and Save Automatically ) Designed to outperform AAA alkaline batteries Fast charging with a USB C port on each AAA rechargeable battery. Easy to use, the included charging cable can charge four batteries at once Each rechargeable AAA 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 AAA batteries include