Boneman

Well, just recently, I replaced the original battery on my 2005 V-6. Very incremental was the degradation actually... the car never gave me any issues starting.... but it was getting to the point that the windows would lose calibration if not daily.... at least three times a week.

After replacing the battery... definitely, the starter motor is MUCH stronger.... and the windows have held calibration ever since.

Just a heads up... if your auto windows require re-calibration quite often of late.... could be you're due for a new battery.

157dB

Or the window was frozen and the opened is door
but the window does not 'short drop'..
This also causes loss of calibration...

I would be a keepin an eye on those
battery terminals...
Specially the red one under the cover.
These turn into corrosion ***** quick.
Then the battery clamp is gone and
now its not as easy as just a battery
replacement but a cable replacement
as well. Pop the hood, check it out all...

Rudolph Hucker

mine is original and is leaking some white powder..

Nuke

That white powder is due to off-gassing and is another sign that your battery needs to be replaced. Be sure to clean those terminals on the cables well before connecting the new battery.

Rudolph Hucker

yeah the red terminal is corroded as hell..i took it all off the other week and cleaned it

Boneman

Always good to check terminals when underhood. Oddly enough, mine were clean as a whistle. However, should yours be prone to the "salts" accumulation that many are, clean them up well and apply a goodly coating of regular old chassis grease and they should stay clean for you.

07 Stang

Still have my original battery. Only issues are on cold days or if the car hasn't been driven for a week... I have to jump start it.

JJHoover

I have had to replace my battery twice, there was no warning nothing. one day everything worked fine next day nothing. that was both times

Nuke

Most automotive wet cell type batteries will usually fail catastrophically. The low voltage condition indicative of a 1 bad cell often goes unnoticed by the average driver but is often the precursor to a dead battery. In the catastrophic failure, the cells collapse internally (often while your driving while the alternator is providing the power so you'll never notice). Then, when you try to restart the next time, nuttin'...

Boneman

Most folks I'm sure don't recall... as batteries now are "maintenance free", having to often CHECK THE WATER LEVEL in each cell..... As the battery neared the end of it's useful life, quite often, you would have one cell that constantly needed to have water added.... that was your precursor back then.