MacBook battery not holding charge
I've got a 2007/8 MacBook and the battery doesn't work. The ID is Macbook4,1.
It runs off of the charger, but as soon as I unplug it, it stops working.
When I go to About This Mac, it shows that the battery has less than 100 cycles and a pretty decent capacity. It also says that the battery is charging but has no power remaining.
I've tried to do an SMC reset but it didn't work. I powered it off, removed the battery and charger, held the power button for 5 seconds, and then put the battery and charger back in.
Please help.
Thanks!
MacBook