Top positive review
UPDATED August 22, 2018: Bottom Port Draining Power, Not Charging. Top Port Very Fast
July 15, 2018
UPDATE: Anker contacted me almost immediately after I posted this review. In two days I had a new Car Charger, and so far it is working perfectly. I cannot recommend Anker products highly enough. Everything we have purchased fro Anker has been of excellent quality, and this one unit that had a problem was promptly replaced with excellent customer service help.
Original Review: This charger, along with 1/2 dozen Anker cords, has been amazing. I have 2 of the chargers. However yesterday my daughter told me the charger was draining her battery on the lower port. I knew she couldn't be correct, so today I plugged in my phone at 40%. It dropped immediately to 39%. No worries, the lightening bolt showed it was charging. Then the app I was loading kept resetting. Next I noticed the power was 38%, then 37. What?? I switched the power cord into the upper port and opened my Amazon app to see the reviews. It was interesting to see someone else felt it was resetting their phone or an app as well. It's been about 7 minutes and my phone has gone from 37 to 48% on that time using the top port. I am sure Anker will make it good, but I wanted to share this as a review in case someone else experiences the same thing. Overall I love Anker products and I will continue to buy them without question, but I expect both ports to charge. I can't say if this occurred before or if it is a new issue. Perhaps we've only used the top charger successfully, because I know we've had two phones plugged in many times.