Battery Question

Pierce330 · 08-06-2009, 05:06 PM

Hello,

My battery on my 02 330i is slowly going (losing its charge) where do you suggest I go for a new one? Stealership is a no no...

Thoughts/suggestions please!...

Thanks...

JPTN · 08-19-2009, 03:56 PM

I got a Delco replacement from http://www.dialautoparts.com/ for $140 CAD. Vented just like the OEM. Slightly smaller size so I threw in a few pieces of pink foam insulation to keep it from sliding around. Same cold-cranking amps (CCA).

(Replaced the battery on my 2002.2 325xi in 2009 July.)

Ceeker · 08-19-2009, 04:04 PM

I can get you a battery for 100.00 bmw original - charged -but no warranty. let me know if you're interested. Give me the part number off the original battery.

Pierce330 · 08-19-2009, 04:26 PM

Hey guys,

Thanks, I purchased an interstate battery that was new with one blemish on the cover so they sold it to me for $80...part # for my 330 as well...

Thanks for your help though...

The-Traveler · 08-21-2009, 02:20 PM

All the threads I've found regarding low weight batteries are a few years old. Is anyone running one of those small light lithium batteries?

JPTN · 08-21-2009, 03:20 PM

Quote:

Originally Posted by The-Traveler

All the threads I've found regarding low weight batteries are a few years old. Is anyone running one of those small light lithium batteries?

Strange. Never heard of a lithium battery for regular (non-electric) cars. Lithium isn't capable of high current. That's why power tools used NiMh.

My new battery is physically smaller than my OEM BMW battery, so density is higher. The correlation of that is if it were the same physical dimensions, it would be lighter. Energy density is increasing so batteries are getting lighter, per volume.

The-Traveler · 08-21-2009, 04:11 PM

Here's an example of what I was talking about. This one was 4 pounds but I know there are some 15 pound ones that I've read about as well. The 15 pound ones are supposed to be usable all year round and this one is probably discontinued.

http://forum.e46fanatics.com/showthread.php?t=483720

vladvm · 08-21-2009, 05:01 PM

Got from Partsource in Markham.

Exide Premium Automotive Battery
BCI Group Size 49
L 14 7/8
W 6 7/8
H 7 9/16
CCA 850
CA 1000
RC 120
2 vents.

The Exide is a tad bigger but is a direct fit. No modification. The battery weighs less.

Note: Take out the vent cap from the OEM battery (negative side) and plug it to (-) vent of the Exide battery and then attach the vent valve to the (+) vent just like OEM.

Store computer will say to get group 48 battery but it has low CCA at 650. Get the 49. Beware of incompetent sales person who might say that higher CCA will fry your starter...that is pure BS.