In this video I demonstrate parasitic draw testing on twin 12 volt batteries on board a vessel here in South Florida. I prefer to use a high current shunt looking for smaller amperage draws versus voltage drop as the amperage draw is a much more detailed test for parasitic draws on batteries (whether they are on or off).
Capt. John Banister, AMS®
Suenos Azules Marine Surveying and Consulting
4521 PGA Boulevard, Suite 461
Palm Beach Gardens, Florida 33418
SAMS® Accredited Marine Surveyor
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(561) 255-4139
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