Awesome, is this something new?
Sent from my Nexus S 4G using Tapatalk
The most important thing with comparing chargers is knowing how much current they can supply. The stock A/C charger puts out 1000 mA. I have a "Griffin" branded car charger I bought at Walmart for $12 that puts out that much to each of it's two ports and it has no problems keeping up either. If you have to use gps on battery or if your charger can't handle the load, DIM the screen.
I took an hour long trip last week with Navigation on the whole time using just the battery, no charger. I manually dimmed the screen and just listened to the turn by turn voice and I had 85% battery life when I got there.
This is a cut and paste from a post I made a couple of weeks ago:
"Last night I did a test just to see if I could come up with something that would overwhelm the charger. I live in a 3G only area, so normally I set my network to CDMA only. Last night, I switched it to CDMA/LTE knowing that it would put a heavy load on the phone searching for a signal. Then I put songbird in shuffle play to get some music going, turned on Wifi tethering and started a d/l with my laptop AND started GPS nav to use that radio and keep the screen on full time. I started with my battery at 75% and on the AC charger it climbed 1% every 3~4 minutes. I didn't think to test it on USB.
The stock charger can supply up to 1000 mA. A USB port only supplies a max of 500 and that might be shared with other USB devices. I read that some people that update phones every time something new comes out try to keep everything as pristine as possible so they can sell the phone on eBay to finance their upgrades. Some of these people go so far as to not unpack the stock chargers. I wonder if they are trying to use older, lower powered chargers and running into problems?
If people are using the stock charger or one with at least 1000 ma of current and having problems keeping the phone charged, something is definitely NOT working the way it is supposed to."
The test above doesn't account for making a call while on 4G and having both 4G & 3G radios active at once. It did have the 4G radio on and searching for a signal while the 3G was in use and WiFi was in use with and active tether connection. I should also say that when I said a USB port only supplies 500 mA, I meant a port on your PC. A powered hub or our chargers can supply much more than that. The charger for my tablet puts out 2000 mA, but I've never needed to use that for my phone.
I guess it is all a YMMV situation.
__________________