Join Date: Jan 2003
Location: Maine Coast
Thanked 287 Times in 220 Posts
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Sorry for being a contradictory view point but I would personally take a different approach. I would spend the money and buy a true battery monitor like the Victron BVM-600 (LINK)
. This monitor comes standard with a 500 amp shunt for $194.65. The Xantrex Link Lite is also another option.
By the time you're done buying battery cables, DPDT or DPST, switches or high amp battery switches, and building a by pass for a 100 amp shunt, you could have yourself a beautiful new battery monitor that will give you lots more information and for not a lot more money than a by-pass.
Out with the old and in with the new would be my suggestion.
I've yet to meet any boater, though I'm sure they are out there, who's installed a battery monitor and properly calibrated it that regretted it.
-Maine Sail / CS-36T
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Last edited by Maine Sail; 02-23-2009 at 01:49 PM.