In my car the battery life seems to be 2 to 3 years but when i look it up im told it should be and average of 4 years.
What factors can reduce the life of a car battery? some thoughts
- Short trips
Not sure what else can be a problem.
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The following can also contribute to a reduced battery life:
I'd expect an average car battery to last around 6 years, but this obviously depends on the car, and the usage pattern - if you're doing lots of short journeys and stopping/starting the engine a lot, you'll wear it out quicker than if you do fewer, longer journeys (battery life is determined by the number and depth of charge/discharge cycles, not time)
As @TheLegendaryCopyCoder says, check that you're fitting the right size battery for the car, and that your alternator is working correctly.
As @SolarMike says, temperature also plays a part - batteries will degrade quicker in hot temperatures than if it's cold (but conversely, they will store less energy when cold)