| | 12-08-2012, 10:25 AM #1
Ok, I bought a Lumia 920 for me and a 820 for my wife. At first, her phone had great battery life and mine was spotty. I had gotten the free wireless charger from AT&T so sometimes I was using that charger and sometimes the provided wired charger. So, we went on a trip for Thanksgiving and after we got back, my phone has been great (15 hours and still at 65% type great) and hers has been dropping 8-10% per hour in standby. I have been uninstalling stuff on her phone trying to figure out what the drain is. Last night, since it was about to die, I decided to just drain it down and then give it a nice full charge and see what it did. I got it to shut down on it's own and when I tried to re-start it, it gave me the low battery signal and would not start up. So, I plugged it into the charger she had been using and after 30 seconds or so it still hadn't tried to start up. So, I switched to the charger from my old Samsung Focus and it responded instantly, started up and started charging. So far today, after 4 hours of standby and light use (text messaging and words by post) she has only lost 1% battery. So, my theory here is that my original battery problems with my 920 was because I was using "Nokia Charger A" sometimes and wireless the other, she was using "Nokia Charger B." We went on the trip and mixed up the chargers when we got back and she was then using "Nokia Charger A" exclusively and I was using wireless. Her battery sucked and mine was great. When I use something other than "Nokia Charger A" we get great battery life. This could also explain the random "bad battery discharge" some people are getting, where one day it is great and another its horrible, depending on which charger they use.
So, for all of you having battery issues with any of your Nokia Phones, try a different charger. I suspect Nokia may be getting a lot of returns not because the battery is bad, but because the chargers are bad.