You frantically dig around for a charger ... three-prong outlet. The model used, a Leviton 15A tamper-resistant outlet, offers 5.1 amps of charging power that's shared between the two ports, one ...

You can use the USB ports in addition to two- and three-prong power plugs. Lastly, the outlet's built-in USB charger may not fit in shallow electrical boxes, so confirm that it's compatible by taking ...