Originally Posted by Knolly
So I recently got my car dock to replace my Touchstone as a car charging solution. The Touchstone worked great but I was worried that leaving it plugged in was draining my car's battery since I had to jump-start it the other day.
Anyhow, right now I'm running a USB cord to the car mount through my Belkin Aircast Auto, which has a USB port, and I've noticed that it doesn't charge the battery faster than using GPS Navigation with the screen on drains it. Is this likely and issue with the charger? I guess what I'm asking is, have people had the phone charge fine with the included Samsung charger while using it for Navigation?
Some chargers aren't, internally, wired/soldered correctly and Android assumes that it's a USB port (ie a port that can spit out 500mA or 0.5A) vs an AC charger (1A). Belkin's regular 12v DC 1-2 port chargers are guilty of this so it's possible that the Aircast is the same way. There's a mod but only useful if you are handy with a soldering iron (or willing to learn, it's easy for things like this).
My generic car charger doesn't have this problem but I had a previous one that did. Still getting a proper charge even when Nav is on and Google Play is streaming
. The OEM vehicle dock will behave in the same way.
Galaxy Nexus [Retired]
Motorola Milestone/Droid [Retired]
Various other phones starting from Ericsson GA628