There’s an impressive 72W of charging power offered with this unit: 45W while in the front, 27W from the back again. That’s more than enough to fast-charge several mobile devices at once, as long as they support either USB C Power Shipping (PD) or QC three.0. Most phones and tablets https://walking-stick-for-hiking18528.wannawiki.com/404598/red_light_flashing_on_car_charger_fundamentals_explained