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-   -   Best battery for my whip? (http://www.maxbimmer.com/forums/showthread.php?t=142413)

NERO 04-25-2011 09:20 PM

Best battery for my whip?
 
I stored my car for the winter, and now my battery doesn't hold charge. Sometimes when I shut it off it wont restart.

I just went to the gym and my shit didn't start.


I bought my whip to be baller, and when my shit don't start @ the gym I look like a loser bros.


Whats the best brand battery ? Where can I get one other then dealer?

Thanks!

V8specialist 04-25-2011 09:30 PM

I think optima yellow tops are good. They aren't black and yellow, just yellow. ;)

NERO 04-25-2011 09:31 PM

Do you think the red top is good enough?

slemmer 04-25-2011 11:45 PM

How old was the dead battery?

V8specialist 04-26-2011 01:10 AM

From his sig--07 335.
4 years old. A little premature but expected.

BmW1819 04-28-2011 08:28 PM

u can't just slap in a battery in e90's cause the alternator will over charge the battery and kill it faster :) once u replace a battery u gotta register it in the dme

V8specialist 04-28-2011 09:39 PM

Quote:

Originally Posted by BmW1819 (Post 1497855)
u can't just slap in a battery in e90's cause the alternator will over charge the battery and kill it faster :) once u replace a battery u gotta register it in the dme

Don't new batteries come charged already?
How do you register a battery with the DME? never heard of that before...

BmW1819 05-09-2011 10:20 PM

yea well that's the problem the new cars come with a intelligent battery system where the battery ages the dme send a signal to charge the battery more so if u don't register it it will over charge your new battery :) yea new battery should be charge. u can go to any shop that services bmw's :) they may charge u :(

V8specialist 05-09-2011 10:30 PM

Quote:

Originally Posted by BmW1819 (Post 1500156)
yea well that's the problem the new cars come with a intelligent battery system where the battery ages the dme send a signal to charge the battery more so if u don't register it it will over charge your new battery :) yea new battery should be charge. u can go to any shop that services bmw's :) they may charge u :(

I'm not what bmws you are referring to, but the ones on this planet have no such system.
How does the DME control voltage reguLation on an alternator????

There is no way any car can tell if you changed a battery. Period.
Perhaps confirming the new batterY is FULLY CHARGED before installing would prevent from frying your alternator.
The alternator doesn't CHARGE the battery voltage... It MAINTAINS it. Big difference...

If anyone can provide me BMW documentation or a procedure for registering a battery I'll shut my mouth. Lol

NERO 05-15-2011 09:25 PM

Thanks guys, I change my battery with a optima. Its starts great now!


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