On Monday, January 30, 2017 at 8:43:45 AM UTC-5, wrote:
On Friday, January 27, 2017 at 11:35:50 AM UTC-7, Andrey Lebedev wrote:
Hello group,

I did a wiring overhaul in my cockpit recently. I learned a lot in the process and decided to document my research for various ways you can connect batteries to your electronics. Hopefully this will be helpful to folks like me half a year ago.

https://medium.com/taming-a-sailplan...y-479b6632fedd

For my ship I've chosen scheme I call "Commuted circuits". I must admit I was pretty amazed by elegance of the solution.

Any feedback, especially practical experience, is highly appreciated.

--
Andrey Lebedev
WU

I like the redundancy of combining two batteries with individual DPDT switches. Flipping a battery selector, creates a power glitch which shuts down my computer and invalidates the trace. The Ideal diodes sound like the way to go with this arrangement. I found this (unpopulated) Ideal diode circuit board online; with parts from Mouser each board would run about $2 each.

https://github.com/xioTechnologies/Ideal-Diode

I have used the individual switches for each battery going to the main bus for over 20 years with no negative issues. When it is time to switch I turn the new one on and then the old off. The current flow that may occur for a couple seconds, given that the voltage differential is less than 2 volts, has never caused me any problems.
I use spade connectors at the bus and have never had one loosen. It no doubt has saved a number of dropped screws into the bottom over the years. We don't have much vibration to worry about, compared to airplanes that have a full time energy to noise/vibration device.
Another experience set.
UH