I realize this is an older thread, however I did want to share with you all that I decided to add the Ron Francis LS-11 low voltage sensor. Even though it triggers at 11V , which I know is low ...
Website:
LS-11 Lo Voltage Sensor-Ron Francis Wiring
Background: I have a 1wire Alternator/No Voltage Regulator in ... SPO2454 so the Red Warning light is Non-functioning as-is in the dash.
My rationale is:
1) My Headlights are wired "ON" during normal driving which puts a constant load, around 5-6amps on my system during driving/ignition switch ON.
2) I turn my cooling fans on at around 90C (rather than let the auto sensor at 100C turn them on). I believe they draw close to 20amps..
I felt these loads would definitely accelerate draining my battery quickly if my alternate fails...
My hook up of the LS-11 was pretty easy. There is an Extra Switched Ignition HOT line that I used off the fuse box. For the GND I used the chassis where the 12V cigarette lighter/auxiliary port is.
Anyway .. just wanted to share my logic..
Many thanks...