I was curious on how long other members are getting between battery replacements....I live where it is over 100 degrees F for 5 months a year and never below freezing for more than 2 weeks....My battery is showing signs of weakness this week after 3 1/2 years....A wal mart exide...I have had real good luck with these on my other applications....the previous battery in the car was an a/c delco...lasted a year and I moved it to my boat ....2006 s type r

 

Seems in our "modern day" vehicles 4-5 years. I have just replaced to our 3rd battery since 2009 in our S Type. My DD '05 Esclade is also on its 3rd battery in about the same amount of ownership.

We reside in S.C. in mild climate.

 

+1

Across several different Jaguar models in recent years, I've had to change each of them between 4-5 years. I usually buy one owner 'approved used' at 2-3 years old so I get plenty of opportunity for testing this theory!

Regular use of a CTEK is reputed to extend battery life but I can't claim to have found evidence myself to support this because I don't keep a vehicle until it then needs another replacement.

Graham

 

My 2014 XJR is still using the stock factory battery. Car went into service on September 2013. So it's about 8+ years old.
Can't believe it's lasted this long. I have a volt meter and watch that for symptoms of it dying. I have left the car for over 6 weeks at the airport before and it started right up.
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Wow that is good. I hear the varta battery was oem at one time and very reliable

 

I guess the company paid? I'm thinking you could've bought a new battery for the Jag, + an uber to/from the airport for the cost of 6 weeks airport parking!

 

Well that's very true and it was my biggest parking bill ever at almost $400!!!
Unfortunately it was personal and I could not expense account the charge.

But when old parents have accidents you simply can't predict how long you will be gone. Looking back I should have driven back home but it's so far (2-3 day drive) that by the time I got there I was afraid my mom might have died.

Turned out she did not but was severely injured (89 year old with a broken hip + other multiple injuries from the fall) and that required weeks and months of rehabilitation that I had not planned on. I figured it would be a week at most and then I could come home.

Even worse was after I came home I had to make another 6 week trip back home shortly thereafter as Mom had to go into assisted living. I had to get rid of all her stuff and get the car and house sold plus get all the assisted living stuff completed so she could move in.

I did drive back for that and it turned into my biggest road trip so far at 2500 miles in 3 days each way.
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Using my amazing mind-reading abilities, it seems you really meant to ask how long can one safely milk the life of a battery before getting stranded?

I've got a NAPA Premium in my '02, installed in 2015. I'm coming up on year 7, so am mindful a replacement may be due soon. I run NAPA Premium in all my vehicles and have been very pleased with them.

For peace of mind, I HIGHLY recommend a tester such as an Ancel BA101:




Twice a year, I check the battery on all my vehicles. This tester not only shows the state-of-charge, but also the overall health. When the tester shows "Replace", it's time to go shopping. With this quick and simple testing, I feel I'm getting maximum life from my batteries with minimal risk of problems.

In addition, I recommend a little voltmeter doohickey that plugs into the cigarette lighter. I have one that does double duty with a USB port for charging my phone. The voltmeter helps catch a charging problem early, before the battery runs down and causes trouble. Don't rely on the little battery warning light to alert you to a problem ahead of time.

 

That is exactly the type of volt meter I have. It has double USB charging ports and a digital display of voltage all in a cigarette plug in type device. Only like $8 or so.
I never have to guess what the voltage is.
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