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The Custom USBp2200m is a small metal-cased power bank with a 2200 mAh battery and a single USB-A output rated at 5V/800mA. It has an on/off button and a battery test button, and comes with a short micro-USB cable. The 800mA output is slow by current standards: it will charge a phone but takes much longer than modern 2A+ banks, and 2200 mAh gives roughly one partial to full top-up on most phones. It suits buyers who want a branded giveaway or a light backup for a short trip, not anyone who needs fast charging or multiple devices.
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This is a portable USB charger with a metal body and a 2200 mAh battery. It has one USB charging port and can charge smartphones and other devices. It can charge a smartphone to more than 90%.
The battery cell inside the charger is UL listed. An on/off button turns the charger on and off, and a battery test button checks the battery level. You can connect a device with the included microUSB charging cable or with the USB charging cable that came with the device.