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Posted for Robert E Froelich <refroelich@juno.com>:


Jim

According to Bob Knuckles one should only use a RG (recombinant Gas)
sealed type battery in an airplane.  In his chapter on batteries he has a
diagram of a unit to test the battery to decide when to replace it.  Read
his chapter and you will be very happy with the battery you have.  

The RG batteries have a lower internal resistance, therefore a higher
voltage for starting an engine.  In addition they are cheaper than
aircraft batteries.  I use two 17 amp 12 volt batteries in my IV, 24
volt, system.  They are working very well.

Bob

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