"Doug Kanter" wrote in message
...
"Gary Warner" wrote in message
...



Flooded These "regular" batteries
have
a
liquid of sulfuric acid between the plates. When charging they produce
hydrogen and oxygen so they must be ventilated and periodically topped
off
with distilled water. The "maintenance free" models do not need water
(not
recommended for hot climates).

Hmm. Mine is maintenance free, which I chose because for the time being,
there's absolutely no place to fasten it down in my 14' boat. It sits
wedged
(fairly) securely between the transom and a plastic milk carton which
holds
some fishing stuff. But, that means it's in the sun constantly. Perhaps I
made the right choice, in terms of heat.



- Discharge rate of 6% to 7% per month

Mine comes off the charger at about 12.8 volts (confirmed with two
different
digital meters). After a week of use, it drops to about 12.3 and sits
there
for a month or so before dipping to 12. It's been the same since day one.


Well, it sounds like you've already made up your mind. But ask anyone who
has owned AGM's and they will tell you that they will never again buy
another flooded cell battery. They're that good. Gel cells are yesterday's
news. There is absolutely no reason to buy a gel cell. Either step up to
AGM technology, or if not convinced, stay with your flooded cells.