what brand battery you guy have

[abepark]

just as the post asks what are the specs on the battery in your car? CCA and brand? I have a suspicion that the battery in my car is not meant for the e30 and it has died on me so I'm gonna buy a new one but want to get the right one.

[nando]

I have a diehard international. I don't know what the CCA is, but it's never failed me - I've actually drained it flat a few times, one time I decided to just get a new (generic) one. End up taking it back because it was dead right out of the box, asked for my old battery back, took it to sears (lifetime warranty), they tested it and it was fine. charged it up and I still have it. I'd guess it's about 8-10 years old now..

[Jand3rson]

I have an Optima red top, it was in the car when I bought it. Never failed me once, and even when it's below freezing out, it still cranks right over with no argument.

[der affe]

optima red in the BMW
and
optima yellow in the 914-6
never failed me

if you have an interstate dealer near you ask them if they have any cosmetic blems.
they usually have a decent discount on them

[jflip2002]

Group 91 Interstate IIRC. BMWs batteries are brought by the exide man. Napa, autozone, kragen, etc get their batteries from Exide also.

[DCColegrove]

Interstate MTP 91 about the best one on the market outside of the OE Varta from BMW.

[abepark]

no specs on these battery's?

[Farbin Kaiber]

I run Interstate whenever I have to change one out.

[atomic]

I run Interstate whenever I have to change one out, but my passion is one of these http://www.brailleauto.com/ Carbin Fiber Battery FTMFW!!!

[StereoInstaller1]

Red top Optima also...can run my stereo for 3 or 4 hours, no problem.

[FLUTE007]

if you go to sears they will give you the proper fitment and cca etc. there is a sears on the deadham westroxbury line on rt1.

[Van Westervelt]

Optima Yellow Top. Has RUN one of my cars for 3 hours driving and no alt. :)

[Sam Cogley]

Big fan of Optima Reds, but my old one wouldn't fit right in the Cabrio. I ended up giving it to my mother for her Cherokee rather than letting it sit.

[blunttech]

im on my 2nd optima red top. 1st one was junk in 3 weeks. but they gave me a new one no questions asked. we'll see how this one does.

[SamE30e]

I have an optima red top in both cars.