Originally Posted by Falen
I was using my Nexus One charger. I guess that is probably 1 amp. It old, but it did the job. I still miss using a trackball.
There are two issues Falen , Like everyone mentioned.
+ USB cables.
If you have the official charger ( from OPO which send current at 2 Amps ) and you have a non-official USB cables , it would not be sending the current at the rate that your charger send .
If you are using Official USB cables but the charger is not Official , then charger will not send the enough current to charge the device .
Check the below video to get some highlights : https://www.youtube.com/watch?v=qAozhkQdaow
So when power hunger apps like hotspot , GPS is being used your batter is draining faster than the power supplied and that could be the issue.
So i would recommend to buy the official charger / USB cable and see if that makes the difference , it would be expensive that the cheap charger but its worth the investment.