I believe they do, I have a QC 2.0 charger in my car now since my 2A DC adapter keeps charging the phone "slow" even with different cables after the Denim update, so I bought a QC2.0 charger and seems to be working just fine, I haven't had a long enough drive with it to see how it does, and I prefer my plate for charging at home so I did not get an AC adapter.