A Symbol 10

What does this symbol above mean. 

What It Means:

This light signifies a problem with the vehicle’s charging system. Possible culprits include a loose or damaged battery cable, a bad alternator, or another electrical fault. You may notice your headlights dimming. Or, in some cases, your car may not start at all.
What To Do:
Don’t wait too long to get it checked out or you may have to jump-start your car to get it to start!