How long does the OEM battery last ?

how can I check the life of the battery in my car? I just purchased a 07

Originally Posted by LycanNyc

how can I check the life of the battery in my car? I just purchased a 07

Take it to auto zone, pep boys or the like. They can test it for you. It's not 100% reliable, but it's about the best you can do.

Originally Posted by The Other Tom

Take it to auto zone, pep boys or the like. They can test it for you. It's not 100% reliable, but it's about the best you can do.

Thanks, what if they say I need to replace just to make $$$ when prob the battery is good ? (I heard this happened before)

Originally Posted by LycanNyc

Thanks, what if they say I need to replace just to make $$$ when prob the battery is good ? (I heard this happened before)

Go to several places and see if you get the same answer

You can get a cheap voltmeter if you don't have one.
A fully healthy battery will read about 12.6 volts or more and not loose its charge to
fast.
Also there is a glass eye on the OEM battery . Black indicates insufficient charge and I think
yellow is bad. The color chart is on the top of the battery.

'06, 6 yrs, 126k miles still on original battery. I drive quite a bit of highways to keep it charged and garaged. Maybe it'll last forever...

Originally Posted by The Other Tom

I'm going on a long road trip this summer and I'm concerned about the age of the battery. My car is 4 years old...no battery issues to date, but I don't want to be on the road and have an issue. How long does the original battery last in the E90 ?
Also, if I have to replace it in an "emergency", how critical is it that the car is re-programmed ? Is it ok to drive for a couple of weeks without re-programming ?

I had mine Changed right at 3 years 10 months at the Dealership--I would rather change it before it fails--I'm just Like THat...

Being stranded at home or on the Road is more important than a few $$--Not to mention sometimes with battery Failure other Parts-Starter, Alt-Can be harmed.

My care was built in 08/2007. It still has the original battery and starts fine. The car has 73k miles on it.

Car built July 2007 and the original battery is doing well. Unlike jburke, I only have 30k miles (it's a summer-only car).

The absolute key is that during non-use, I have it on a Battery Tender (not trickle charger)!

ED

I may go the preventative replacement route--my car is 3 months shy of 5 years old.
My last car (a Toyota) had the battery last 7 years. But that's pushing it.

Mine is an 07 with 46k on it and the battery is fine. Just had it checked at the dealer. A friend of mine who also has an 07 had to replace his at around 60k. He was told by his tach at the dealership that sometimes they die sooner if you don't drive at highway speeds often.

Originally Posted by Cesatl30

Mine is an 07 with 46k on it and the battery is fine. Just had it checked at the dealer. A friend of mine who also has an 07 had to replace his at around 60k. He was told by his tach at the dealership that sometimes they die sooner if you don't drive at highway speeds often.

I think that would be because the battery doesn't get charged back fully (from the draw on engine startup) until you've spent some time with engine somewhat above idle for a period of time.
Won't get that as easily from short stop-and-go driving.

Some info on lead-acid batteries (and what they like/dislike in discharge/recharge cycles):
http://batteryuniversity.com/learn/a...n_modern_times

'06 OEM battery still going strong @ 6+ years and 82k miles (hopefully this won't jinx it). Appreciate the tips on registration, though I doubt I will be visiting the dealer @ $400 if my indy can do it for <$200.