Monday, Apr 13, 2009 at 14:28
A cranking battery doesn't generally take much to charge up as it is not normally drained in the way a deep cycle is.
So I would have to say if you are using the battery to run a fridge, of course it will take longer to charge up again, as you are drawing more current from it. The Supercharge Allrounder is a compromise between a starting battery and a deep cycle battery. From what I can see, It is still a "wet cell" battery of "maintenance free" design.
A cranker uses a large amount of current but for only a very short amount of time.
A deep cycle battery is designed to supply a relatively low amount of current over an extended period of time. Thus the term deep cycle.
Don't expect to get a long life out of a starter battery if used to run a fridge etc.
Some people will debate this, but a starting battery is not designed for deep cycle use.
An AGM type battery takes less time to charge than a
well cell battery, but unless you have a solar panel of sufficient capacity (or an alternative method of charging to "keep up" with the current drawn from it, the battery will eventually drain down too low.
If this happens on more than a couple of occasions, you run the risk of destroying the battery. (A low voltage cutout device is a sound investment)
For more in depth technical information have a look at
Deep Cycle Battery FAQ
Bill
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