The other day when my dad was driving home he stoped at a store. When he came back to the car, the battery was dead...less than 5 minutes later. When we got it started, the check engine lite was on but it made it home with outputting a new battery in. When we got home, we put the battery charger on an it immediatly went to 6 charging amps... the next morning it was fully carged BUT, the battery has a little check thing and it was red. So, i disconnected the battery and it went to green :? I connected the battery and ran a few errends without any problem. When I got back home, I put on the carger again and it went to 3 charging amps ... I have less than 100 miles left on the warrentee... Ford is dumb and says there is no problem... Does anyone know what is wrong??? Thanks

 

text book time. the little green ball is part of a hydrometer. when you see the green ball your battery is at 65% of charge or better. the red would indicate that your battery is going bad. the electrolyte solution has become contaminated and your grinds are most likely begining to grow together. essentially you just need a new battery. i would advise getting one asap.

 

Right now the battery is showing green...I took it to ford today and they said everything was fine...

 

Well if your batt has the vents that you can open, try to open it and dispose of some of the electrolyte solution which will cause the battery indicator to show that it needs to be replaced. You didn't hear that from me though lol

 

Playing with battery acid doesn't sound like a good idea. You probably have a bad battery. I wouldn't trust the little ball either, it's not exactly a highly calibrated insturment. The first battery in my ranger lasted only two years. If I were you I would just go get a new battery.

 

You may just be low on water which you can refill with distilled water. Thats a bandaid fix, but if caught in time can give extend the usefulness of the battery. But overall sounds like you need a new battery, Ford will probably not help you out much because this is basically a wear and tear item.

 

Its a sealed battery...I already tried that... thanks for all of ur info

 

Those little indicators are hardly reliable. I've never seen one that worked on any of my vehicles. They have all gotten stuck or broken somehow. You need to load test it. It is probably just time for a new battery. Not the end of the world.