This week I have been having some issues with my MacBook not starting up. There has been a couple of times when I would see the battery icon with a lightning bolt.
According to Apple
The best solution is to Force your Mac to turn off and back on (Knowledge Base Answer: HT204267).
What's Going On?
For MacBooks, this means that the battery has died. The computer is charging the battery up enough so it can work.
You may have to wait a couple of minutes before trying to start the computer.
Long Term Solution: You should take the laptop to get looked at - Apple will likely install a new battery.
Try Resetting the SMC
The System Management Controller (SMC) may need to be reset. The SMC manages tasks like thermal and battery management. Resetting may help restore your computer back to life. (Note: It can't hurt to try this!)
Here is how to reset the SMC via MacBook:
- Shut down your Mac
- Press and hold 'Control' (Left) + 'Option' (Left) + 'Shift' (Right) keys
- Keep holding them for seven seconds and press and hold the 'Power' button. Keep pressing for another seven seconds
- Release all the keys, wait, and then restart your Mac.
What Worked for Me
After resetting the SMC, I restarted the computer by holding down the power button for 10-seconds. This seems to be the "best way" for me to get out of the mode that it is in.