Power Banks
Far from a socket, a power bank keeps your phone and tablet going. Match the capacity to your needs: 5,000 mAh covers one full phone charge, 10,000 mAh roughly two, and 20,000 mAh units will top up a tablet as well. Port count matters if you charge several devices, USB-C with Power Delivery speeds things up considerably, and weight is worth checking when the bank rides in a jacket pocket. A charge indicator shows how much energy is left, while pass-through models charge themselves and your phone at the same time.
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