Typically they do not fail all of a sudden. Conventional "acid-filled" batteries have a harder life, for many of the reasons listed above. Conventional batteries typically only last 2 to 3 years on average. Although, 4 to 5 years is possible, in the best environments, and with excellent maintenance.
Herein, how much is a new battery for a motorcycle?
That's a maximum of $57.50 for a new battery charger, maybe less. If you consider the fact that a brand new motorcycle battery from the dealer will typically cost you $100-150, is it worth it? Let's see the statistics. Lead Acid Batteries (AGM or Wet Cell alike) have an average of 3-5 years of life.
How long do motorcycle batteries last for?
Battery manufacturers agree that on average, a motorcycle battery should last 48 months, yet most of us are lucky to get half of that, and in most cases the battery's premature death can be chalked up to a lack of maintenance.
How many amps are in a motorcycle battery?
The rule of thumb is that you should never charge a battery at more than one-tenth its rating in amp hours. Meaning that a 20-amp battery should be charged at no more than 2 amps over a 10-hour period.