"Marty S." wrote in message
...
Hi all...


Why would a Group 24 and Group 27 battery from the same manufacturer be
the
same weight??? And, since they are the same weight, why wouldn't the
reserve capacity be the same?

What gives a battery its current and capacity ratings are the surface area
of the lead plates and the volume of the electrolyte.

You can build a battery with thick, heavy lead plates and make it weigh a
lot more without improving its ratings. Or to put a different spin on it,
you can make a battery that has impressive specifications and make it a lot
cheaper by making the lead plates very thin. The drawback, however, is the
durability of the battery. If you compare a "light" and "heavy" battery, as
the batteries age the battery with thin plates will degrade much faster than
the battery with thick heavy plates.

My experience with "cheap" deep cycle batteries is that you get what you
pay for.

Rod