I was using my laptop this morning (2010 Macbook Pro) (and it had been plugged into the adapter which had been plugged in) and it was working fine. Afterwards, I realized that there wasn't any light coming from the charger. I thought maybe it was the wall outlet, so I plugged in my cell phone to its charger and it had worked fine, so I know it's not the outlet. I tried using the extension cord the macbook came with, and that didn't make a difference (still no charge). I went throughout the house trying different wall outlets (just in case). Still didn't work. I also reset the SMC http://support.apple.com/kb/ht3964 and that made absolutely no difference. and I cleaned both the magsafe adapter pins and the port on the laptop. I'm not sure what's wrong, and I'm not sure what to do. The rest of the laptop seems to be working fine, (backlight and such). I'm just running out of battery life and need some help!