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That's interesting how efficiently the E-tec winds up especially compared to the Opti, Denny - wonder if it has to do with the power required to run the Opti's injection compressor??? Wish I could find a 4-5 y.o. e-tec for this money...Even my I-6 won't fire with less than 12.3V or so...
Even so if that battery of yours is past 50%, you better hit the retirement plan for a new battery before your next circumnavigation
Ron makes a good point about isolating your starting battery. The Blue Sea Systems is neat (and it sounds like a few of you guys might consider it -this means you Sandman

) in that the switch is "on," "off," or "combine," and when "on," it charges both batteries while you run.
The Sea Tow call was fuel vacuum. Bulb clamp sneeze by. Defective as new , but worked for a month.
The primary wiring is pretty clean, but the house is calling.
That`s a neat system and you know I dislike wiring more than working on my trailer. It is also why I have reservations about making the crossing.
Time to buy a mini torch. A good owner should know his wiring is right.
Cheers,
GFS