In article ,
Bill Wright wrote:
Have you considered fitting a digital ammeter? The shunt resistor can be
fitted in a plastic box somewhere where the battery lead doesn't need to
be extended. Then you simply take two (thin) wires to the actual meter,
or to the dividing circuit if the meter needs one.

You can actually just measure the voltage drop across the ground lead from
battery to chassis. No need for a shunt resistor as such.

I made one for the ol' Rover which doesn't have an ammeter. But arranged
it to drive a tri-colour LED. Red for discharge, amber for balanced, green
for charging. A lot easier to fit on the dash than a meter.

--
*Don't squat with your spurs on *

Dave Plowman London SW
To e-mail, change noise into sound.