My 2009 Jaguar XK has a Jaguar branded battery, dated 2018. It has functioned flawlessly, without using a battery tender. So, as it enters its sixth year of service, I am expecting that it will need to be replaced. Since the Jaguar brand worked well, I would like to use the same one, but source it at a more reasonable cost.
Anyone know what company manufactured the Jaguar branded batteries?

thanks..
John

 

Yeah I always wondered the same. My 07 lasted nine years. Prolly a dealership question since they originate in the UK, are they imported to the US and only available @ dealerships? UK made batteries aren't typically available in the US I'm guessing.

 

I tried searching this on the Goog, and got lost in the myriad of Electric Vehicle batteries.

 

right, that’s why I posed the question. I might try Bing search, see where that goes.
thanks.

 

European specification vehicles are fitted with Varta batteries manufactured in Germany. Some more recent models have Exide. Can't see why those bound for the US would be fitted with a different brand but strange things happen across different JLR markets.

Here's the label of the original in my 2014 XK:




All have the battery date of manufacture code MM/YY on the negative post:





Varta batteries were black cased but recent Varta batteries have translucent white cases. This is my recent replacement:





As long as you go for a reputable brand and it's .......

1. vented
2. same dimensions
3. same or higher rating

...... there shouldn't be any problems.

I'll just add ( to wind up the AGM taliban ), if the original was a wet battery, replace with wet; if the original was AGM, replace with AGM. The alternator is matched to the battery type.

Graham

 

I was in Walmart the other day and found they had one in stock which surprised me - who actually makes it I have no idea. $229 Canadian - which is around what I paid for one from the Jag dealer 6 years ago.

https://www.walmart.com/ip/EverStart...9?from=/search

$159 US

The one in the local Canuck Walmart has a 5 year warranty rather 3

 

I had a longish discussion with a battery importer several months ago. Basically, the higher quality (of each manufacturer) are all quite similar. I really pushed him with regard to Varta batteries, once again he said that they all are quite similar.
Then last month I asked an old friend that had a MB shop, his take was the same. He said he quit recommending any brand over another because they all seem to fail sooner than they used to some years back. Both stress that the higher end battery of each line were definatley better and worth the extra money.
wj

 

Go AGM! Not vented and could be better than wet cell.

 

Graham,

That is an interesting thought.
I’m not versed in the technical aspect, could you expound on this?

I also looked again at mine, and it doesn’t have any label, other than Jaguar.

 

In the US, 95% of all brands of batteries are produced by Johnson Controls.

 

New ownership and management = Clarios
but yeh most us batteries made by same company BUT to different specifications.
Agm can be damaged by high charging voltage that regular lead acid batteries typically receive from alternators.
I do not believe jag went to BMS until 2010 with 5 litre. BMS regulates output more carefully than older voltage regulator hardware.
Odds are the original bat was lead acid, with Jaguar you can never be 100% certain of anything.
wj

 

We can turn this into an AGM battery discussion but that's been done. AGM is fine going in.
https://www.jaguarforums.com/forum/x...change-241034/

 

You are mistaken. AGM batteries are vented.

Just because AGM batteries are sealed doesn't mean they're not vented. AGM batteries are sealed because you can't add electrolyte to a glass mat. AGM batteries produce hydrogen gas while charging. That gas is highly explosive in a confined space like the X150 enclosed battery compartment. AGM batteries have ports for attaching tubing to direct that hydrogen gas outside the vehicle where it can be safely dissipated.

 

My 2007 came to me with a battery problem, so my learning curve shot up.
I finally went with a Group 49/H8 battery because of all the on board computers, but a deal come up for an young AGM.
The literature says that AGMs can short out, with a charging voltage of 15v or higher, and that they like a lot of amps in the charge.
So I checked my charging voltage from the alternator and it turned out to be 14.2v. So now i feel so much more at ease.
Amps! A few or many, can't be a problem.

 

Bits of maybe useless info:

• The older black Vartas as fitted to Jaguars of that time were the basic versions. The "Silver" is the uprated version of the same size.
• Bosch have their European batteries, at least, made by Varta. Compare and you will see that they are identically speced in the same cases with a different sticker.
• Varta is owned Johnson Controls.

 

Battery discussions are a bit like motor oil discussions. With more than a passing resemblance to religion and politics.

I replaced my lead acid Jaguar battery with a store brand AGM from O’Reilly’s, a local auto parts chain. Sacrilege!! So far (a bit over a year) the car hasn’t blown up, the alternator hasn’t surrendered its commission, and the starter has flawlessly delivered a robust start every time.

As the expression goes, your mileage may vary.

 

The starter (possibly because of the AGM) turns the engine over faster than I have known. Then while established in the this high RPM, I have the distinct feeling a computer lets the juice go to the spark plugs. It reminds me of the old DC3s. After nine blades of the prop have passed by the cockpit window, we turned on the magnetos. Bang bang bang, and about 3 feet of flames would come out the short exhaust manifold.

 

LOL, And the old deuce and a half’s

 

Try pressing and holding the START button before you step on the brake pedal. A tap on the pedal should be all you need.