Mark - many thanks for posting that detailed background/reasoning! Your design process/decision tree all makes sense.
I'm guessing this is the Sterling device you mentioned?
https://www.sterling-power-usa.com/SterlingPower12voltalternatorprotectiondevice.aspx
Fascinating topic. As I try to...
Everyone - thanks for the advice!
My initial post above was just about adding an LFP battery as a house battery (only), turning what was a single AGM start+house boat into a start AGM + house LHP boat, but without battery combiner-type functionality for the reasons stated here. The crazy...
Agreed! The only connection between AGM and LHP4 batteries is the DC-DC Charger. There is no "1/2/all"-type battery combiner switch in the mix. Starting the engine is the sole domain of the AGM, which has a conventional on/off rotary battery switch.
Thank you! I was determined to learn just...
Thanks!
I did have the Permatrim/warranty question at the start with the mechanic, who is an authorized Suzuki dealer. He said that he would not consider it as a warranty-voiding modification, which I was appreciative/happy to hear.
BEHEMOTH was recently re-powered with a Suzuki DF50A.
I thought I'd share initial impressions and info, in case it helps someone else.
This new motor replaced a 2005 Honda BF50A which had become unreliable (due to carb issues that few mechanics could fix or wanted to take on).
The mechanic...