Builtin 1800mAh lithium battery with USB charging Key benefits Reliable power: The integrated 1800mAh lithium battery provides a solid capacity for extended use compared with lowercapacity cells. Rechargeable and convenient: Builtin battery eliminates the need for disposable cells or frequent replacements. Recharge quickly and easily via USB. Universal charging: USB charging lets you use common power sources—wall adapters, laptops, power banks, or car chargers—so you can recharge almost anywhere. Important features Battery capacity: 1800mAh (builtin lithium battery). Charging type: USB charging (compatible with standard USB power sources). Design advantage: Builtin battery reduces loose parts and keeps the device compact and ready to use. Performance and compatibility Stable power delivery: The lithium chemistry supports consistent output for the device's intended functions without interruption from frequent battery swaps. Wide compatibility with USB chargers: Works with USBA/USBC adapters and power banks (use the appropriate cable and adapter for your setup). Low maintenance: Rechargeable solution minimizes ongoing battery purchases and disposal. Practical use scenarios Travel and commuting: Charge from a laptop or power bank to keep the device operating during flights, transit, or onthego work. Everyday home or office use: Plug into a USB wall adapter or desktop USB port for overnight charging and reliable daily performance. Power interruptions and emergencies: Keep a power bank or car USB adapter on hand to quickly recharge the device during outages or when external power is unavailable. Why this matters Fewer interruptions: A larger builtin capacity reduces the need to recharge or batteries frequently. Simpler charging: USB charging uses widely available cables and adapters so you don't need a proprietary charger. Cleaner design: The integrated battery keeps the product tidy and ready for use without loose battery compartments. Notes Specification included: 1800mAh builtin lithium battery; charging via USB. Follow standard charging practices and use compatible USB chargers and cables.