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#17
October 3rd 07, 09:05 PM
posted to rec.aviation.owning
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Voltage variation
Paul kgyy wrote:
My JPI routinely runs 13.4 - 13.5 in flight after initial charging at 13.6 - 13.8, no problems with display. Mine is similar. Initial charge voltage is ~14.0 volts, drops to ~13.6 as charge rate decreases after start. It has never made sense to me, but I assume it is a characteristic of the voltage regulator. I believe it is a solid-state version, replaced several years ago. So far I've had no problems with my JPI 700, display or otherwise. It has been installed since 1998 in my Cessna R172K. Flown about 400 tach hours since that time. 
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