Quote:
Originally Posted by J Franklin
The biggest detriment to battery life is how they are maintained and used. For any specific brand they are built all the same inside from the same parts. I normally get 7-10 years out of the ones I buy.
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Quality control is another big factor, I believe. Lack of maintenance usually results in gradual loss of reserve. A 3 year old battery going totally dead overnight points to faulty parts or assembly. Vibration or that last bump on the way home could have shaken something loose and the engine continued to run on the generator.