Brand: Cellhelmet. MPN: CAR-PD-20W-A-C. You need to know you can charge your devices even when you re on the go. You can trust cellhelmet s 20-Watt Dual-Port Car Charger for USB and USB-C to charge your phone or tablet in the car. You can charge 2 devices at the same time. No more dying phones when you re trying to use your phone s GPS map app or listen to music.