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A 10,000mAh power bank is a portable device that stores electrical energy and is designed to charge various electronic devices such as smartphones, tablets, smartwatches, and more. The term "mAh" stands for milliampere-hour, which represents the capacity of the power bank's battery. In simple terms, a 10,000mAh power bank can theoretically provide 10,000 milliamperes of current for one hour or 1,000 milliamperes for 10 hours.Here are some general features and considerations for a 10,000mAh power bank:Capacity: As mentioned, 10,000mAh is the capacity of the power bank. The actual usable capacity may be slightly lower due to factors like conversion efficiency and energy losses during charging and discharging.Output Ports: Look for a power bank with multiple output ports, such as USB-A and USB-C, to charge different devices simultaneously.Fast Charging: Some power banks support fast charging technologies, such as Qualcomm Quick Charge or Power Delivery (PD), which can significantly reduce charging times for compatible devices.Input Ports: Ensure that the power bank has a convenient way to recharge itself, such as micro USB, USB-C, or both.Size and Weight: Consider the physical dimensions and weight of the power bank, especially if portability is a crucial factor for you.Build Quality: Look for a power bank with a durable and reliable build. Some may come with features like shock resistance or a rugged design for outdoor use.Additional Features: Some power banks come with extra features like LED indicators to show the remaining battery capacity, a flashlight, or even wireless charging capabilities.Brand Reputation: Consider purchasing from reputable brands with positive reviews to ensure product quality and reliability.