I had a mate look at my boat with dual batteries. He did'nt like the way I earthed to the hull. Said its wrong. People do things a different way but is there an actual true blue, aus standards sheet, on how to wire dual batteries in an alloy boat. Scruff
Scruff Your friend is 100% correct. The boat should never ever be used as the earth.
Boats are not like cars , especially older model cars where the earth went to the body.
The main issue is electrolous , being alloy it's supprising the boat is not corroding away.
Suggest this is corrected ASAP
In respect to an Aus standard , not that I'm aware of as basically there is no rocket science in wireing a boat. In brief , neg & pos wireing runs from the battery to terminal blocks , normally mounted up near (under) the dash & the various electrics connect into those blocks via switches.
this is fairly standard practice by most pressed alloy boat manufacturers. I spend a lot of my time rewiring 2-4yr old boats especially pressed tinnies. No boat should ever earth to body as Grex said also is destroys wiring extra quick. wiring should only ever connect to a battery in an ideal world. Also if i was you I would check the whole circuit electrical tape should not be used on a boat nor should many other things they do. everything soldered no plain crimps without solder not heatshrink without sikaflex or liquid electrical tape under it (unless hot glue infused)
Reliable dual batteries
Posted - 29/10/2010 : 11:29:17 PM
