toyotaman89
+1y
you can use a meter if it has a setting for amperage, or even a test light.
Dis- connect your negative battery terminal. connect one of the meters leads, OR the test lights clip to the negative batt cable.
hook the other lead, or the light bulb side of the test light to the neg batt terminal. this will complete the circuit using the light or meter.
the meter will now show on the readout how many amps you are pulling ....
We'll use the light for simplicity... when you hook it up... i bet it lights up , right??
if it does, you have a parasitic current draw.
now, if it is lit brightly, start removing fuses or dis-connecting aftermarket equipment 1 at a time, if you pull a fuse,or disconnect something like your amp , etc... and the light gets really dim, that is the circuit that is staying energized and killing your batt. If the light doesnt change at all, put the fuse back in.
once you eliminate all parasitic current draws, the test light should be BARELY lit, or maybe barely glowing....this means you have a VERY low current draw!
Have fun!!