How to reset pram
My battery is not charging.
I want to recharge my PRAM and SMC
Also remember that once you do that the MAC will loose it's memory of the battery charge curves. To teach it you should do a full charge, then unplug and do a full discharge until the mac shuts down. Then let it alone for 2 hours for the battery to settle. Charge it with the Mac off until the green light lights. Unplug, wait 1 hour and then turn it on, plug in the power adapter and the mac now knows how long it takes to charge the battery and it's capacity.