Join Date: Feb 2012
Location: Silver Spring, MD
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Re: Charging batteries with engine while sailing
My manual for the Universal M3-20 says to put it in gear for 1 to 2 minutes every 2 or 3 hours while charging batteries. This must be a requirement for the Hurth transmission. So I guess they don't mind running the engine for extended periods of time to charge the batteries. Sabre manual also says to run it full throttle every once in a while to clean things out.