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Old 10-09-2019, 12:09 AM   #4
MurrayM
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City: Kitimat, North Coast BC
Country: Canada
Vessel Name: Badger
Vessel Model: 30' Sundowner Tug
Join Date: Jul 2012
Posts: 4,833
I'm pondering a different path...

We have a GB70 Genius Boost jump start battery and it's got me thinking about doing away with a starting battery altogether. It's easily recharged via the 12 volt cigarette lighter and with a full charge will supposedly start 40 diesel engines larger than our Yanmar 4JH2.

Interestingly, we have the same house and starting battery set up as yours. If there's any logic to my idea we should be able to keep the same 100 amp alternator, increase the size of the house bank by 25% to 50%, have only one simple ON/OFF switch, get rid of three 1/2/ALL/OFF switches and probably dozens of feet of wiring.

Crazy? Maybe...
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