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Compass Marine How To | all galleries >> Compass Marine How To Articles >> Installing A Battery Monitor > Measuring Nothing !!
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Measuring Nothing !!

Measuring Nothing !!

The only thing different in this photo is the location of the chargers negative lead. The charger is still putting out about 5.68 amps, however, because the negative lead is on the wrong side of the shunt it can not be seen or measured by the shunt. If it can't be seen by the shunt it can not be logged or read by the battery monitor. Don't jump the shunt.

Any wire that winds up on the BATTERY or BATTERY side of the shunt I refer to as a SNEAKER WIRE.. No SNEAKER WIRES!!!!

Whether you are drawing a load or feeding the system a charge current the negative load wires must be on the load side of the shunt not the -BATTERY side.

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Ken Brooke 24-Apr-2015 16:38
what about neg. from starter motor?