Re: [Owfs-developers] Monitoring Battery Voltage

[david r. <ric...@gm...>]

Hello Jason,

I have used the current measurement input of a DS2438 in conjunction with a
current shunt to measure battery charging current in the negative lead, for
battery voltage measurement a potential divider is needed on the measurement
input. The circuit can be powered from the 1-wire bus or from a separate 5
volt regulator, the current drain is very low, less than 1mA

It is NOT possible to use a current transformer (donut) in a DC circuit, you
may be able to get a hall effect monitor device but the circuit will then
get complicated.

However as suggested removing some fuses would be more instructive.
hth David.