May 08, 2020 · Similarly, the vehicle owner may assume it’s a bad alternator since their battery isn’t too old and then spend a lot of money replacing or repairing the alternator which didn’t need fixing in the first place. Even though car batteries come with warranties (ie: 48 months, 60 months, etc.), it doesn’t mean they will actually last that long.
May 28, 2019 · A battery that most frequently reaches 50% depth of discharge will last longer than a battery that is often pushed to a greater depth of discharge. However, at the same time, repeated shallow discharge (5-10%) of a deep cycle battery also contributes to shortened lifespans.