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ya should be able to get them at most big name parts stores or probably stores set up for offroad. Not really sure i don't have one myself but I've seen em around
Originally posted by 94F150-408 Deep Cycle is what you want for your secondary. Optima and similar gel type batteries will give you what you need for amperage for winching applications.
might be an idea where did they get the 150 amp alts at
You didn't say what vehical you are driving but check out power masters alternators at summit racing. They have 140 amp ones for what seems like most F-Series trucks.
You might want to look at a few of the threads here about the PowerMaster alternators, they are not thought of very highly. I have a friend that replaced his powermaster twice and still had problems. He went to a MechMan 225 amp Alternator. and drives a HUGE stereo system without problems now. I've ran MechMan 200 amp alternators in several different vehicles for many years now without any problems at all. Check out their web site!