Batteries are sensitive to their electrolyte temperature, some more than
others. If it is tempting to put batteries outside the shack for any
reason, take care of the temperature extremes they may experience in terms
of charge voltage etc. Inside a shack that is nice for us is also good for
the battery. See:
http://batteryuniversity.com/learn/article/charging_at_high_and_low_temperatures
73
David
G3UNA
Concerns about outgassing notwithstanding, I've never used anything more
than the voltage regulator on the power supply to limit the charge, and
I've always used ordinary deep cycle batteries. The key is to limit that
voltage to what the battery expects, and to limit the charging current to
what the battery will take as a "trickle" once it's reached full charge.
Those are not difficult to do if you simply monitor battery voltage and
charge current.
73, Jim K9YC
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