[Excaliber]

Deep cycle batteries, like the yellow top designed for marine use, do present a problem. They will take, even demand, as much power as your charging system can put out. Forcing your alternator to run at or near max load for an extended period of time. This leads to over heating of the alternator and premature burnout. Depending on how often you drive the car this can actually happen within weeks or months! I'd go red top myself...