stock batteries are usually pretty minimum,
but shouldnt go through 2 in 2 years,
have someone check alternator,
can also try checking yourself, with car running, disconnect battery,
car should continue running on its own without battery,
if it stalls, alt is not putting out enough voltage.
if you have a voltmeter, checking volts coming out the alternator would be more accurate

 

Did they replace it with an OEM Jeep battery or an aftermarket? I've seen aftermarket battery's fail within 2 years

 

It should be a Mopar battery if it was replaced under warranty.

 

Everyone should be checking their battery regularly as its hidden away.
The clamps on the cable ends are stamped out of very thin metal and once corrosion and etc begins it won't take long for the connection to become compromised at all.

I removed both clamps early on and put those red/green felt washers over the posts, re-clamped the cables and hit everything with Fluid Film.

Same year Patriot, lots of stop and go, lots of highway. I must start/stop my Pat 40 times a day...

Not a speck of terminal cancer, not a peep of electrical issues, starts on first tug always.

 

have any of ever had battery drain issues on your 2011 latitudes? I am running an aftermarket sound system but my amp is shutting off with the car.
Could the drain be attributed to a slightly loose ground terminal on my battery

 

It's probably from them leaving the doors open while detailing and vacuuming it, maybe even playing the radio. A good 1/2 hour drive should charge it back to normal.

 

it's not just the age and k's, it's also the number of starts.....

ask her to keep a log (just for a normal week) of how many times she starts the engine...

 

My experience over the years with just about any stock battery is about 24 - 36 months. After that, replace it with a quality battery. If you are running any kind of other equipment like aftermarket stereos /amps or winches, spend the money and get an Optima.

 

I have an 08' pat with the orig . battery , knock on wood , still in good shape. in upstate n.y. it's been a rough winter as most of you know..5 plus years , can't complain

 

Stewart

I had a problem with my Pat (2008), changed starter alternator and battery (3 batteries within 4 months. Turns out that the stock radio was shorting out, removed the fuse to confirm. It has not done it since now have to replace the radio.

 

we just bought new red top optimas in both our 08 diesel Patriot and 09 petrol forester

should see them into their graves !

 

my last yellow top lasted nearly 8 years!

I want to try an Odyssey battery next though!

 

My OEM battery died just at the 3 year mark. It was replaced under Warranty.
If I still have my Patriot in 2-3 years i will buy a higher grade Battery.

 

In extreme heat or cold, you never want to go cheap on a battery. If you can't get an Odyssey or Optima, get the one with the best warranty you can find.

 

The Mopar battery in my 08 is still the original. Going on 8 yrs and still going strong.