MotorCityRick Posted April 29, 2004 Report Share Posted April 29, 2004 I don't recall seeing any posts recently about vented battey replacement options, but imagine my surprise when neither GMPARTSDIRECT.COM or any local major chain (Sears, Auto Zone, Pep Boys, Murrays) carries a replacement battery for my '99 STS. What year did they first start putting the battery under the back seat? I know my '95 still had it under the hood. I sure that I'm not the first member to run into this situation, so I'm anxious to find out if there is an alternative to paying up the butt at the local dealership. What about one of those sealed Optimum jobs? Anyone go that direction? Link to comment Share on other sites More sharing options...
Daniel Kuczek Posted April 29, 2004 Report Share Posted April 29, 2004 The last time I needed one for my Allante I was able to find a vented Delco battery at K-Mart. When it finally dies, I plan on going to the Optima, I've heard that a lot of Allante owners have done this with good results. Hope this helps. Link to comment Share on other sites More sharing options...
Ben Posted April 29, 2004 Report Share Posted April 29, 2004 I purchased a Red Top Optima about a year ago for my 95 Concours. It died on me, but the free replacement seems to be working great. With the ability to mount anywhere, and probably cheaper than the dealer, I would go for one. Link to comment Share on other sites More sharing options...
Logan Posted April 29, 2004 Report Share Posted April 29, 2004 Its still a vented battery. There is a hose sytem that plugs into the top sides of the battery to vent the fumes. '98 was the first year Cadillac with the battery under the seat. I think the Olds Aurora was the first one... I got my replacement at my local Cadillac dealler. $117. But we are on great terms with them also.... Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
JimD Posted April 29, 2004 Report Share Posted April 29, 2004 I was unable to locate a battery with the correct dimensions and the recommended CCA spec. other than ACDelco. Called 3 local Cadillac parts counters and told them I was price-shopping for the battery; best price was a little over $100 like Logan says. My battery is still the original, but one of these days.... If you find a replacement other than ACDelco, let us know. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
marty Posted April 30, 2004 Report Share Posted April 30, 2004 I placed an optima in my 98 seville ,best price locally was at O reilly auto parts, had to change the negative cable,it was a little short to reach the new terminal...Oreilly had a good, heavy one that worked really good. Really happy with the battery,have had it about 8 months. The system volts seem more stable,as the delco was very weak. ......Added a vector trickle charger under the seat and hard wired to battery,with a stub extension cord at the side of the rear seat. I was driving a company car and the sls sat for long periods. I would plug in the charger and let it keep the battery at full charge.....lots of onboard computers you know.............. Link to comment Share on other sites More sharing options...
mike98c Posted April 30, 2004 Report Share Posted April 30, 2004 I've had an Optima battery in place for over a year with good results. Logan, you're correct. The (now dead) Olds, 95 thru 99 stiffer Aurora platform was adopted by the Seville in 98. Link to comment Share on other sites More sharing options...
JimD Posted April 30, 2004 Report Share Posted April 30, 2004 Good news about the Optima applications. What is the Optima battery number?? Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
Ben Posted April 30, 2004 Report Share Posted April 30, 2004 They only have one, 34/70 or close to that. It is the Red top 800CCA model with dual contacts. Link to comment Share on other sites More sharing options...
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