Smartoools AA 1.5V Type-C Rechargeable Batteries

These rechargeable Lithium-ion (Li-ion) batteries come with a built-in USB-C charging port, offering a modern and hassle-free charging experience without needing a separate charger. Inside, they are made with advanced chemical components such as lithium cobalt oxide or LiFePO4 as the cathode and graphite as the anode, while a lithium-based electrolyte enables smooth ion movement for efficient energy storage and discharge. The battery is protected by a durable steel or nickel-plated shell that ensures structural strength and prevents leakage. A key feature is the integrated circuit (PCB), which regulates the charging process by converting the 5V input from the USB-C port into a stable 1.5V output. Additionally, copper and aluminum foils act as current collectors, and plastic or polymer insulators safely separate the positive and negative terminals.

According to the specifications, the battery has a capacity of 2600mWh and delivers a constant 1.5V output, ensuring reliable and consistent performance for various devices. It supports 5V charging via Type-C, typically requiring around 1.5 to 2 hours for a full charge, and offers a cycle life of up to approximately 1200 charges. The integrated USB-C port adds extra convenience, especially for users on the go. However, the packaging contains several typographical errors, which may indicate a generic manufacturer, so it is recommended to use the batteries with caution and avoid leaving them charging unattended for extended periods.