Never really took much notice until today. Yeah, I only have 8600 original miles, but that's pushing 8 years (bought new Apr 2003) on the stock Mitsu battery. Probably should replace it, but it's starting/working just fine.

 

Thats one good battery to last 8 yrs

 

my stock 2003 battery finally gave up two months ago at 16k miles..good run lol

 

my stock battery gave up earlier this year on my 8 as well, around 65,000 miles, i swear. the previous owner babied the car to no end haha. my buddy is a tech at Mitsubishi and couldnt believe it was still starting the car haha.

 

Damm! if it works leave it lol

 

X2 lol if it ain't broke don't fix it

 

Are they still that good, worth buying another?? I've been driving/wrenching for almost 25 years now (owned at least 40 different vehicles) and no other battery has gone longer than 5 years. As I said, since I don't drive it much, I never even thought about it before today.

 

a stock battery usually 3-5 years, if you get more outta them your lucky, if it works just leave it, unless you start to have problems starting your evo..

 

I'd replace it at this point just so you don't get stranded. I've had older batteries die with little notice

 

Test the voltage when you go for servicing.
And depending if urs is water/maintenance free battery 2-3years max

 

I have an 03 with original battery. When its cold it turns a little slow, other than that its holding up great.

 

Hard to believe, but another year and she still starts, even in 20 degree weather (which is about as cold as it has gotten here so far this winter). Think I'm going to go for 10 years It must the low mileage, only put about 500 miles last year.

 

I replaced the oem battery of my 1988 sigma in 1997 and have changed it every 3 years since(sears diehard silver).

 

my OEM bat died this month at 105k miles.

 

Still rockin the OEM battery in my 2002 2.4L tacoma 4x4 with 135,000 miles. I can't believe it's still in there. I'm not replacing it till it fails though just to see what it will do.

I always feel lucky if I can get more than 5 years out of a battery.