07 Ford Escape battery light comes on and goes off while I'm driving?

My mechanic said that the alternator and battery both look good. He said there are no loose wires and alternator belt is fine. Has anyone else had this experience? What could be the problem. I no longer feel confident to drive it.

Clean and tighten the battery cables. Check the charging system fuse.

The alternator is starting to fail. I'd bet you'll have complete failure in the next few months as winter sets in.

Hi so a new battery would be the best idea as winter is so close. As temperature effects the battery voltage when it gets cold.

"Both look good"? Or both test good? An alternator can start to have intermittent problems when that old and replacing the alternator is likely the cure.