Deep Cycle batteries

Bob Landry wrote:

wa8yxm wrote:



NOTE that Marine/Deep cycle, are far closer to starting batteries.

Not true at all. Deep Cycle is deep cycle. it doesn't matter if it has marine, RV, or both stamped on the case.
Dual purpose batteries are closer to starting batteries but with heavier plates and will be OK for intermittent light loads like cabin lights or stereos. They are not suitable for repeated deep discharges.

Having done the tests and having owned the batteries.

I agree that Deep Cycle are Deep Cycle

But MARINE/DEEP CYCLE is not Deep cycle. It is a starting battery, designed to start a marine engine which does not re-charge the battery.

I actually researched this stuff a few years back when I got my Class A. I spent quite a few hours on battery manufacturer's web pages looking at battery specification sheets, And on independent lab report pages.. GOOGLE is your friend if you wish to follow up on it.

But basically they are dual purpose batteries

now there is such a thing as a Marine/RV Deep cycle. Note the different placment of the slash.. These may be true deep cycle, Since they were not all that common when I last researched I am not sure.

But Marine/Deep cycle is a starting battery.

A MARINE (without deep cycle) is a starting battery not rated for below zero service,

But the placement of the slash is important.