Members who have donated towards server costs
Join Date: May 2006
Location: Tampa, Florida
You really want the volt meter leads connected directly to the battery terminals. This will tell you true battery voltage, not the voltage at some other point which would already have incurred a voltage drop.
That is why the post showed connecting with a relay. The relay acts like a switch so that when the bike is off, the volt meter is not draining the battery. In a perfect world, the volt meter would have infinite impedance, in otherwords, not drain the battery, but that isn't reality.
The other choice is a switch inline with the meter so you can shut if off when the bike is off.
Or, use the headlight leads for the volt meter. Measure the battery voltage at the battery terminals, then add the difference to the voltage at the headlight. You would have a pretty constant number you would be mentally adding to the value shown on the volt meter.
93VN750, under re-construction
vn750.com Member # 828
Rick's Stator and R/R
MF AGM Battery
Shaved & Jetted
MAC Tapered Staggered Pipes
Stainless Steel Brake Lines
23,XXX miles and holding pending gasket change (underway!!!)