You need to make sure the voltage on the meter is matching the samsung charger. "MicroUSB" does not mean that the charger is the correct one. I need to check the voltage to be exact, but I believe anything under 5.1V will not properly charge the device. Many of the generic MicroUSB chargers are 5.0 and under. USB 2.0 ports are also powered at 5.0V max output so they don't work very well for charging the device as well.
Thanks, but I'm not sure that's the problem although it could very well be.
I just bought a "Powerline 140 Watt Inverter w/USB and Pivoting Plug" from recent PricePlunge daily deal (http://www.priceplunge.com/Forums/Discussion/2180) with that line of reasoning, thinking that my USB charger was simply not powerful enough. However, after plugging it in the USB port it STILL didn't work. I was really upset. Then I thought, why don't I try using a home charger and just plug it in the outlet port of the inverter.
Weirdly enough, it worked! Why it works in the power receptacle and not the USB one is beyond me. Also, why others' smartphones will work with all of my other USB chargers but mine won't is also a mystery. I wouldn't think the Exhibit II is a power hog but like I said in my first sentence "it very well could be".
Thanks. Using the power port on my inverter is okay, but it is a pain and I'd really like to be able to use a less bulky USB port.
It's not strange at all...
The USB port is probably putting out just under the voltage needed to 'charge' the device and the home charger is supplying enough voltage to charge it. All you did was buy an outlet to take out the road instead of the right portable charger for the device. A T-Mobile store would probably have a generic that would have worked, but you would just test it out before leaving the store to make sure it was good.
That said, the official Samsung auto charger is around $30, so your $7 solution was by far the cheaper way to go... Nicely done!
In one word...W-A-L-G-R-E-E-N-S! I've had the same problem too with my two daughters' Exhibit II's and I finally found the charger that works at Walgreens! They have them by the registers and they sell them in different colors along with the different colored cables too. I think I paid between $6 and $8 for it. I can't remember exactly but it was cheap. All our other phones charged in the car except the Exhibits. And our other phones are more high-end than these. I hope you find them!
You are absolutely correct!!! I bought a cheap one from Walgreens at the register and it works. Voltage was 5.0 just like the rest I had tried; but I bought it because I saw it there and remembered your post. It worked! Thanks so much! I don't have to use that ginormous inverter to charge my phone. This has helped greatly. Now I have to find out what the real difference is between all the others and this one.
Haha, I find this hilarious. I didn't even bother with the usb stuff, as you do have to worry about voltage issues and all that. I just get the car charger off of ebay. I'm not even going to pay 20 bucks for a car charger... Three dollars is a better number anyway.
It's funny how the cheapie stuff works better than oem.
I was looking for a solution to this issue too. This phone seems to drain its battery faster than any other phone I've ever owned, iPhones, another Samsung android, etc., so having a car charger is important. Inverter approach is pretty bulky so I'd rather have a 12v based charger.
I did some testing to try and understand why several good quality USB car chargers were not working. The answer seems to be the voltage. I've seen various posts state that 5.1 volts was the critical threshold. For this phone, my measurements suggest the critical threshold is somewhere between 5.21 and 5.29 volts. I measured some higher quality USB car chargers including ones rate for higher 2.1 amp output. They output 5.2 volts, but this phone would not acknowledge that they were even connected. I also measured the Samsung wall charger. It outputs 5.29 volts and the phone will charge fine with that.
I'd conclude that the Walgreen charger gives an output voltage sufficiently close to 5.29 volts to meet this phones unusually high requirements.
The unusually high drain rate and low compatibility with some of the best in class car chargers are a major weakness of this otherwise nice phone.
I had the same problem with my Galaxy Exhibit 4G. I tried various car chargers, including the Tech&Go! charger from Walgreens mentioned above, but none worked. I finally found one that worked at my local TJ Maxx store. It is the Cellular Innovations Universal USB Travel Charger (Car & Home) by Mizco (mizco.com). Cellular Innovations makes this Universal charger and another for the iPhone/iPod. It is the same charger, but the Universal comes with a lot more cables and cost less than the iPhone/iPod one. The charger itself has a USB output port, a DC input plug for charging from your car, and a sliding AC plug for charging from your home electrical outlet. I got it on clearance for $7.
I have similar problem. My Exhibit charges in all home chargers (usb & power outlet), but not in my car usb chargers (one of them is Duracel - 2.1 A rated). I have an FM car transmitter that has a USB port. Phone charges with that, but since the current is less, the charge keeps draining, not at all gaining any charge. Still searching for a car usb charger that works.