L shaped charger won't charge battery

Is it a black macbook?

Try resetting the SMC as described here:

http://support.apple.com/kb/ht3964

I'm having just about the same problem. T-shaped power cord frayed due to strain, the new L-shaped cord would charge and then just stop. I kept taking it back to my local Apple licensed repair shop and they kept adjusting it. Finally, I got fed up and just called Apple. If you haven't already, set up a call with the Apple Experts. They were great. I just finished my call with them and hopefully within a day or two, I'll have a replacement t-shaped power cord on the way. Make sure you give them as much information as possible when you fill out the online form. I essentially bypassed the first person I talked to because I had already given him all the information he was supposed to ask for.

According to one of the people I talked to, the new L chargers weren't necessarily made to work on older Macbooks and Apple's engineers are currently trying to figure out what is causing some Macbooks to not respond (or in my case, respond sporadically) to the new chargers.

I have this problem too, but it seems removing the battery is all that it takes to fix it.

As long as I ensure the power cord is connected before turning the computer on or waking it from sleep, it won't happen... at least not yet.

Finally! A firmware update!

http://support.apple.com/kb/TS3499

I have just replaced my T shaped charger 3 days ago and i couldnt figure out why it wouldnt charge my macbook pro (its an early 2007 model) i thought at first that it was the charger and that i was blowing the fuse in the unit (English style plug with built in removable fuse) i changed the fuse and then it would charge. but ounce i unpluged the charger it would not charge the laptop again.

i went online and this is a common issue with other users of this L shaped charger and i checked my SMD version with is 1.5 so its up to date

i just noticed that it charges if you do the following (Least it does for me)

plug in the charger (L Shaped new style charger) into the socket

connect it to the laptop

if it doesnt start to charge ie the little orange or green light does not come one.

put the laptop to sleep by closing down the lid till it shuts down completely

or

put the laptop to sleep using the Apple icon on the top left side and scroll down to "SLEEP" and it should start to charge


this works for me (its not a complete solution but it does work)

Hope it helps someone