Quote:
Originally Posted by radlynx
I start my car a few times a day and has a commute time of 6 miles. That's not enough to fully charge the battery. So what I do is recharge it every 3 months or so. I have an exide agm. 24f size.
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A six mile commute is plenty of time to charge your battery after an engine start. A start draws maybe 300 amps for 2 seconds if everything is healthy. That's .167 ampere-hours of draw on the battery. Assuming your commute takes 10 minutes, the alternator only has to supply 1 amp for that time to replenish the battery.
I have a 5 mile commute, and have never had battery issues because of it. I'll venture that 5 mile or less trips are the norm for a great number of people who don't even know what a battery charger is, and who get along just fine.
