It normally means that your voltage is below 12v. It could be an indication that your alternator is goin bad or gone. Maybe you'll be lucky and its just a bad battery connection.
it means the light on a battery of a computer or cell phone
the battery light means that your battery is being charged properly. so let it light.
What does it mean when the airbag light and battery light on 1999 Ford Escort flashes?
The battery light means your battery is low. You should go to a mechanics.
If it's like the 1997, you just have to discontinue the negative cable from the battery.
Your battery is not being charged
The battery in the key fob is low.
That light doesn't mean that your battery needs to be replaced. It means that your battery is not being charged while the car is running. Have your alternator tested.
You have low fuel,and a low battery, just taking a wild stab at it.
The battery isn't being charged
That your engine is not running.
The red light means the battery is low.