A few months ago, my 15" MBP Retina battery stopped charging sporadically.. I'd hook it up to the charger,it would receive charge and keep the battery at whatever % it was at, but not charge at all. If I clicked the battery, it would say "Battery Not Charging" but the LED light would be orange. Other times, it would charge, but it would tell me the battery need to charge "14 hours until full"..?! Then I started noticing that the battery wasn't lasting as long. I'm a heavy user, so I would usually get 4-5 hours at most (never got close to the 7 hours), but suddenly it (sometimes) only lasted 1 hour; other times it was fine. Reset SMC and PRAM - nothing changed. Went to the genius bar, they did a diagnostics and told me battery was healthy and I wasn't using any CPU intensive stuff and it must be a software thing. Now, more than half the time it doesn't charge when I connect it - sometimes the LED light won't work at all, but if I put my spare charger in, it will work. It won't charge, but will run off the power cord. Other times, it's fine and charges right away (with orange LED light). BUT I am not getting more than an hour out of my battery, if that, even if I am only running one application (Office or Safari, etc.) at low light. Reset SMC and PRAM again - nothing. What software thing could possibly be causing this??? And FYI, the chargers are fine - other computer users have no problem with any of the chargers, it's just my computer that is acting weird. Any ideas???