Wow that is expensive even for NZ for a battery the one in my jag is a DIN88 cost me $165au about 3 years ago here in Aussie
sure they are not having a lend of you with those prices

 

Wow!

A GM dealership had a sale on the right size at $75 for AC Delco Freedom batteries a few weeks ago.

Mind you when questioned, the parts guy said they had been on the shelf for a year.

 

How did you conclude that DIN88 the correct spec? I can't seem to find any Jaguar defined specs anywhere. The handbook just says "...Must be same type as original", and I have no way of knowing what the original battery was. There are some barely legible codes in the parts catalogue: LNA 1250BA and LNA 1250A, but these only lead to dead end/foreign websites on the net.

 

Looks like the Interstate MTP 93 in my X300 may have given up the ghost.

I'm trying a slow charge & will replace it with the same if needed but it got me thinking: Does the X300 actually need 850 CCA?

If I were to buy a charger with jumping capability, how many CCA would I actually need to start the car? Anyone know?

 

I don't know the specific answer to your question, but the "crank" function on a charger is a dangerous beast. It can give substantially more voltage than the car is designed for in the cases I have observed.

 

Is it already out n the market?

 

I thought I had read that the ECU was very (almost ridiculously) particular about voltage on the battery before it would let the car start, so undersized batteries were not recommended and in fact a weak battery was a good place to start looking at oddball non-start issues.

....or am I mis-remembering?

Al

 

So, Al, what does that have to do with the thread? A weak (undervoltage) battery can raise all kinds of hell, but that has not much to do with the size or battery technology. A small battery might discharge deeper and wear out sooner (MIGHT) but if it has the amps to crank and hold a 10 + volt on crank voltage, the car knows no difference.

 

Hrmm did I misunderstand this thread?

The thread title is " can you skimp on the BIG X300 battery.? " so I think my post is perfectly appropriate as "skimp" can mean several things, but to me that means "cut corners" which can be physical size, electrical capacity, quality, etc....

After all, the first post of this thread asked:


And as some of the posts prior to mine indicated, it probably isn't a good idea to "skimp" on the battery in any of those categories.

And in my brief research here, I've found a thread or two about the batteries in these cars that recommend not deviating from the battery spec'd.

The 95 Riviera I've got is similarly sensitive and takes a large battery, which is also mounted in the rear. It needs the CCA and capacity due to all the electrical goodies, and the size is important to stay secured properly. Unfortunately it is a pricey battery, but its size works to one advantage in that it at least long lived.


Now if the thread subject was "can I put a physically smaller battery with same capacity" or "can I use a lithium battery", then I might agree that my post wasn't on topic *shrug*

Even then, I suspect the discussion would still eventually touch on questions of actual electrical capacity for a given technology and size.

Just trying to be helpful.

Al

 

Ok, but a lot of time passed between the original thread and the immediate lithium ion, crank assist charge and the CCA question- I just thought I might have missed something. And, I did not mean to rag on you, but the great battery tale causes many folks to spend a lot of money needlessly. Yes, the Jags respond poorly to low voltage batteries. Yes, many times a bigger sized battery will hold its voltage longer. But that is not the whole story.

I will start by saying that I now have the speced battery in all of my Jaguars except the V-12. However, what I have found to be the biggest factor for problems is the slow discharge capacity, not the CCA. The X-300 and X-308 cars have a pretty significant standby current draw and while a bigger battery, size and CCA-wise have longer low current capacity, that is what matters. So a lithium battery could do just fine, as long as it can support 10 volts while cranking AND the 25 mA standby current for the time between starts the owner expects.

Bad batteries and battery size are different issues. I have run my X-300 fine on a tiny battery from my daughter's Prius. It just would not fit right in the mount.

 

I bought li-on battery for my aprilia Motard last month. Now starts perfectly. Apparently the lead acid bat was giving so much to crank the starter little was left for the efi to work properly. So I bought bigger li-on for the 2013 can am quad. Unbelievably light and small and works so well. Did cost $300 compared to lead version at $90. I found a Li-on for $800 to replace Jag battery which is fine at the moment so Ill wait til it gives up and prices come down.

 

The boot floor on my car is drilled and has captive threads for 3 different sizes of battery. I assume that the batteries the cars received were market specific, such that a car going to a moderate climate doesn't need as big a battery as one going to Russia for example.

The parts book lists a "Europe" application at 72 amp/hours and "Except Europe" application at 92 amp/hours.