CapacityThe Anker PowerCore Select 20000mAh is a power bank with a battery capacity of 20000mAh, which is equivalent to 74 Wh (watt-hours). This capacity is enough to charge most smartphones several times over, making it a convenient option for travel or as an emergency backup.Output PowerThe PowerCore Select has a maximum output power of 12W (5V/2.4A), which is sufficient for charging most smartphones and tablets at a reasonable speed. However, it may not be powerful enough to charge devices with high power consumption, such as laptops, at their maximum charging speed.Input PowerThe power bank can be recharged using a USB-C input with a maximum power of 10W (5V/2A), which allows for faster charging times compared to traditional Micro-USB inputs. However, it’s important to note that you will need a USB-C power adapter to take advantage of this feature, as not all chargers support the USB-C standard.Size and WeightThe PowerCore Select has dimensions of 6.6 x 2.4 x 0.9 inches (168 x 61 x 23 mm) and weighs approximately 13.3 ounces (375 g). This size and weight make it relatively portable, but it may be too bulky for some users who prefer smaller and more compact power banks.Build Quality and DesignThe Anker PowerCore Select features a sturdy design with a matte black finish that resists fingerprints and smudges. It has a scratch-resistant surface that protects the device from daily wear and tear. The power bank also includes a handy LED light indicator that shows the remaining battery level at a glance. The device is designed with safety features such as overcharge protection, short circuit protection, and temperature control to ensure safe charging for your devices.CompatibilityThe Anker PowerCore Select is compatible with most USB-charged devices, including smartphones, tablets, headphones, and other portable electronics. It works with both Android and iOS devices, making it a versatile option for users with multiple devices or those who frequently switch between platforms.Package ContentsIn the box, you will find the Anker PowerCore Select 20000mAh power bank, a Micro-USB cable for recharging the device, a travel pouch, and a welcome guide with instructions on how to use the product safely and effectively. It’s worth noting that the package does not include a USB-C cable or USB-C power adapter, which are required for charging the device using its USB-C input. You will need to purchase these separately if you wish to take advantage of the faster charging speeds offered by the USB-C standard.