I am trying to figure out a charging
issue i have been having for a year. I think i have my batteries grounded wrong, but wanted to run it by you guys before i start changing things again...
I have a 20 amp generator
, not an alternator
(its old, but been rebuilt and tested) and an external regulator
. When i run the engine
the rebuilders mentioned voltage should be at 14.6. I only get 13.2.
I have starter battery
ground/negative terminal wired directly to house battery
ground terminal and then house ground terminal wired directly to blue seas vsm422 shunt side one terminal and then shunt side two terminal wired to main negative bus bar. Engine
ground wire near solenoid connects at this same main negative bus bar. Generator
is grounded directly to external voltage regulator
Should i break the ground connection from start battery to house and run the ground start connection directly to generator? Or to regulator? Or to both?
Should my engine ground wire go to the main negative bus bar as it is now or to somewhere else?
Last part of puzzle...my vsm422 displays voltage slightly higher than what the batteries are actually when i check them with a multimeter. Start battery with multimeter is at 12.6, vsm displays 13.06. Amp use of vsm seems to reflect accurate draws though, as i know my gps
draws 500ma and vsm displays .5amp draw, etc.
Thanks a lot.
S/V Sea Dog; Rhodes Chesapeake 32
, Apostle Islands