Question about 2001 Volkswagen Passat

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Battery again Thanks, but it is ok if I buy a 80 amps battery? do you what the exact size is?

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I don't know the exact size of the OEM battery's amp rating, but that seems low compared to most batteries. At the minimum, you want probably 600 CCA (it's a decent-sized car with a lot of electronics in it), so I wouldn't buy below that rating, especially if you live where it gets cold in the winter (that's where you really need the higher CCA ratings).

Posted on Aug 29, 2008


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On land rover discovery handbook, it says need group size 24 battery, why in all battery stores say I need group size 34?

The size numbers you are referring to- 24 and 34, refer to the BCI group number of the battery. These numbers define the physical dimensions of the battery case- that's it!

It has nothing to do with the CCA [cold cranking amps rating] or AH [amps per hour rating], or the battery life.

BCI stands for Battery Council International; it is a trade association of manufacturers of original equipment (OEM) and after-market auto batteries. This association is responsible for setting the standards and testing dimension and sizes of lead acid batteries.

So, to sum it all up, the BCI 24 battery has the following dimensions: its Length 10.3" (260mm); Its Width is 6.8" (175mm); and its Height 8.9" (225mm)

The BCI 34 battery has the following dimensions: Its Length is 10.3" (260mm); Its Width is 6.8" (175mm); and its height is 7.9" (200mm)

Both batteries have the positive polarity on the left hand side and are located on the top of the battery; they are for automotive use and are SAE (Society of Automotive Engineers) approved standards.

The difference between the two batteries are in their dimensional height; the BCI 24 is 8.9'' whereas the BCI 34 height is shorter at 7.9" by 1".

As long as the battery tray and the battery hold down clamps can secure the BCI 34 in place, you should have no problems.

HOWEVER, should you decide to buy the BCI 34, make sure the CCA rating is the same or more than the BCI 24; that's where it counts the most in cold weather. And of course, the reserve Capacity rating (RC).

Never compromise the aforementioned by going with lower ratings when replacing a battery to save a few bucks, because it will cost you more money in the long run when having to call for AAA services or replacing the battery again because of its short life due to energy demands that automobiles of today command as a result of all the electronic components that are used during the operation of the vehicle or the paralytic draw (slow power drain of the ECM and its components) when not in use.

Feb 20, 2015 | 2004 Land Rover Discovery

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Battery how much amps

the amps ( current ) that a battery can produce is governed by the no of plates and the plate size of the battery. The current is made to flow by the voltage available to push it. So a car battery of 12 volts will need to be fully charged to have a current flow of say 400 amps to spin the starter but if the battery is flat say 9 volts then the amps will be say 80 amps and will not spin anything. Batteries used to rated as no of plates so a car battery was 7 plates or rated at 200 amps/hour a better battery was 9 plate and 350amp/hr. and a good battery was 13 plate or 450amp/hr. Now they are rated at cranking amps so the bigger the number the better the battery
When buying a battery you have to be careful of where the terminals are located ( at the front of the battery or the back and the positive is on the right end or the left end and if they are round large or small or flat with a hole through them If you are having with the battery running down too soon have a load test done and if ok then go for a bigger battery crank amp/hr. that will fit in the battery holder. Most battery retailers will be able to advise you best.

Aug 03, 2013 | 2007 Mercedes-Benz Mercedes G55

2 Answers

I need to replace the battery on my 2003 Mazda MPV and am getting conflicting information on which series battery to put in. Some sites and dealers say a series 35 battery, some say a series 24 battery....

If you got Diesel engine you must use a 70 to 80 AmpH battery.
If you got a gasoline engine a normal 60 Amp/Hr bettery can be use.
Hoe that settles that!
Thanks for using Fixya!

Dec 08, 2010 | 2003 Mazda MPV

1 Answer

I just replaced the battery on my 2007 odyssey. When I tested it right away it started, now after a day it does not start right away, I have to hold the ignition for 30+ seconds and the engine starts to...

As long as it fit OK in the battery tray and the CCA( cold cranking amps) are the same or higher you should be fine. Sounds like you have symptoms of another problem possibly developing.

Please take a moment to rate my answer.............Thanks

Dec 01, 2010 | 2007 Honda Odyssey

2 Answers

What battery size is recommended for 2004 Honda CRV. Start up is sluggish.

The correct size is a group 51R, so for example a napa battery would be a 85-51 R.

Sep 21, 2010 | 2004 Honda CR-V

1 Answer

Car Battery Specs

Need to have correct, cold cranking amps (525 cca) or higher. Dimensions length x width x height the same or smaller is ok. Larger may not fit in tray or have clearance with hood. Then the fact its top post battery. The other numbers mean exact size for oe fit.

Jul 22, 2010 | 1995 Nissan Altima

1 Answer

What is the largest size battery I can put in 1996 suzuki cino, I want to ensure that I have sufficent power for electrics, thanks.


Jun 23, 2010 | 1995 Suzuki Swift

1 Answer

What size battery for a 1999 Porsche 996?

Don't worry about the size ... the group, etc. Go to the auto parts store tell them what your car is and they will provide you with exactly the proper size with the proper posts in the right place.

Your will have to make the decision "Economy", "Standard" or "Premium". These different grade batteries will provide different CCA ratings with more CCA at the higher end. CCA = Cold Crank Amps. Buy as much battery as you an afford if you are keeping this vehicle.

Thanks for your interest in

Mar 01, 2010 | 1999 Porsche 911 Carrera

2 Answers

Need battery size for 1996 Dodge Caravan

your cars battery might only need charging or battery acid replacement, but if you'd realy wish to buy new one, buy one with the same size and voltage and amps as the one you have right now, or you could buy a battery with the same voltage with a higher amppere-hour (Ah) rating!

May 21, 2009 | 1996 Dodge Caravan

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