My MacBook will not hold a charge and when I plug it up the green light is very, very dim. What do I need to do?
Troubleshooting power adapter issues 1. Make sure a known good outlet is being used. Verify that the power outlet you’re using is working correctly. Plug in a known good appliance, such as a lamp, TV, or clock, and confirm it powers on properly. 2. Make sure the proper wattage adapter for your portable computer is used. Select the appropriate power adapter for your Apple portable computer. 3. Identify line noise issues. Unplug the power adapter from the wall, let it sit for 60 seconds, then plug the adapter back in. * If the adapter works after this 60-second “rest”, you most likely have a line noise issue with your power source. It will require that you to reset the adapter periodically by repeating this moment of rest. This issue occurs when the AC adapter’s “over voltage protection” feature senses ground noise and then turns off the adapter. * Some possible sources of line noise include lights with ballasts, refrigerators, or mini-refrigerators that are on the same electrical circui
