An update: the 11x6 prop and spinner are working well. I recently did a run for over two hours at 25-35A. The 60A PWM motor controller was warm, but OK. The short 10 guage supply cables (biggest I could find with a waterproof plug) were quite warm. The other larger guage wiring was fine. LOL was making 5km/h over ground against light wind and current at 30-35A, then 6km/h with current (calm) at 25A. Distance covered was about 18km.
That excursion took the powerbag from about 90% SOC to maybe 35% SOC. I was concerned about cell imbalance at first, because there was a 200mV spread between cells, but as the pack wore down, the spread reduced to less than 10mV between cells. Still preserving the bottom balance, IMO.
I think the trolling motor's brushes are starting to glaze, because I usually need to tap the motor to make it start turning when it's cold.
The solar panel and Genasun MPPT charge controller keep working faithfully.
I've really enjoyed this little electric propulsion project, even considering the failures and worry along the way. It's cool that my little proa goes places without buring fuel, or needing to be plugged in.
BTW, the fish and chips from Pajo's at Rocky Point were great.
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Posted by: cpcanoesailor@yahoo.ca
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