Bob,
I use two Odyssey PC-680 batteries, but one will crank my 3-rotor just fine. The second is for redundancy, as is the second alternator. The dimensions are 7.0 x 3-1/16 x 6-5/8. If you locate it in the tail, you may want to use #2 welding cable to keep the voltage drop to a minimum.
Mark S.
On 6/26/07, bmears9413@aol.com <bmears9413@aol.com> wrote:
My battery box in my kit will require a battery about 5 1/2" X 6". That seems pretty small to me. Is that about average for aircraft batteries?
Bob Mears
Supermarine Spitfire
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