Product Overview: The Smartoools USB Type-C Rechargeable AA Battery (2 PCS Pack) is an innovative, eco-friendly power solution designed to eliminate the hassle of disposable alkaline batteries and bulky external charging docks. Built with advanced lithium-ion cell technology, each AA battery features a direct built-in USB Type-C port right on the cell body, allowing effortless recharging via laptops, power banks, or standard USB wall adapters using the included dual-head cable. Unlike traditional 1.2V NiMH rechargeable cells, Smartoools batteries maintain a constant, steady 1.5V output voltage throughout their discharge cycle, ensuring high-drain devices like wireless mice, gaming controllers, smart door locks, toys, and flashlights operate at peak performance. Supporting up to 1200+ recharge cycles and fast 1.5-hour charging with integrated LED indicator lights, this 2-pack set is a cost-effective and eco-conscious choice for everyday electronics. • Key Highlight 1: Direct USB Type-C Charging - Built-in USB-C port on each battery body eliminates the need for an external charging base. • Key Highlight 2: Constant 1.5V Output Voltage - Delivers stable 1.5V power for consistent device performance unlike conventional 1.2V NiMH batteries. • Key Highlight 3: Fast 1.5-Hour Full Charge - Advanced lithium technology recharges fully in approximately 1.5 hours using the included 2-in-1 USB cable. • Key Highlight 4: 1200+ Eco-Friendly Cycles - Replaces hundreds of single-use alkaline batteries, drastically reducing electronic waste and long-term costs.