--- In Repeater-Builder@yahoogroups.com, Q <[EMAIL PROTECTED]> wrote:
>
> Do a Google search and you will find an education in backup
> battery science....I found the GE supply wont properly charge my
> sealed lead/acids,so I use an additional float charger with an
> equalization switch and equalize them monthly.Makes a HUGE
> difference in capacity and battery life.Car batteries are the
> worst for backup duty! 73,Lee
>
YES! Car batteries are designed to be rugged, insensitive to
temperature, and to provide one huge surge of power. The compromises
made to make them perform well in cars, make them lousy backup
batteries. Less capacity per unit volume, and little tolerance to
deep discharge.
Trolling batteries are a much better choice. Still designed for
ruggedness, but less compromise for temperature, and designed to
output a moderate current for hours.
Power Sonic and others do make LA and LC cells designed for actual
backup power use. They just aren't as readily available.
For each type of battery, check carefully the charge requirements and
voltage. A charger designed for one type will kill one type, and
undercharge other types.
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