That is the alternator going bad. Right now it hasn't completely gone but it will for sure. It will cost around $250 to $400 depending where you go...but call around.
Not a 'discharging' battery. Depends on the type of battery. A lead acid battery gives off Hydrogen when 'charging', which could be hazardous to health, if a spark causes it to explode. A 'discharged' battery can have an impact on it's own health. Best to keep them charged.
yes
Do you mean What does it mean when the brake and battery lights come on in when it is already started? Check your alternator may be its not working well it cause the battery sign comes out.
Either battery or alternator going bad, Advance Auto, or Auto Zone can check this for you! This happened to my truck, but my memory is not to good! More likely the alternator. yeah this happened to me on the freeway, i figured the computer needed to be reset but when the brake and battery lights go on, the alternator is going bad and you might have a half day of driving before it drains your battery
Yes.
It's probably your Alternator that is going bad. That is if the battery and brake lights came on at the same time.
Damaged or malfunctioning brake system. However many times people think their foot is on the brake when it is on the gas. Of course you could be driving off a clif and the brakes will not work at all then. Are you driving a Toyota?
Either the brake light switch or on brake pedal there is a button that pushes the switch and it fell out.
at the age of 13 and up
Yes
I'm not so sure :(
On some car yes it will.