Hi
Had the problem of "battery not charging" on Macbook Pro 2006
Charger connecter lit up green
It was very new non apple battery from OWC
Looked at the System Profile only 16 cycles on the battery
AC charger was shown as "connected"
Battery showed up so not a problem with poor connection or not properly inserted (I had tried taking the battery in and out several times) but the profiler said "Charging: No"
Charger worked on another Macbook so that wasnt the problem
I tried the SMC reset where you sleep, shutdown, take out the battery, press power supply for 5 secs, reconnect AC, reinsert battery etc - No luck
Then I read the SMC also controls the sleep wake cycle and lid closure.
I cant exactly remember what I did because I was so ****** off by this stage and starting to lose concentration but I think I closed the lid and let the computer go to sleep and then opened it again to rewake.
After doing this 3 times the bloody thing now shows the battery is charging
A bit random I know but saved me having mental breakdown
I would love to know if this helps anyone else!