That's what I had with my solar panel system. My A65 had no alternator so I had one 9Ahr Yuasa battery online (powering my radio, intercom, gps etc) and a back-up 3Ahr one off-line being recharged by the solar panel. This panel was a low profile monocrystalline 12vdc 5.2 watt unit that worked on cloudy days and even under the sky lights inside the hangar. See http://tinyurl.com/aooqfv
A small digital voltmeter monitored the condition of the online battery and I used a DPDT switch to bring the recharged one online and redirect the drained one back to the solar panel. -----Original Message----- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Dan Heath via KRnet Sent: 15 July 2014 09:56 To: 'KRnet' Subject: Re: KR> "Engine-driven alternator?" May I suggest a back up battery system. Larry F. and Mark L. and probably many others have done this. A battery in good condition will last longer than you will need to get out of airspace, should you have an electrical problem. I never did it, but will definitely build it in to my next aircraft.
