How To Measure Battery Drain. Disconnect the negative battery cable. Nevertheless if the difference between the more cells readings ranges between 25 to 50 points then this is a sign of battery drain.
This is known as the hour rate for example 100Ahrs at 10 hours. Once the above are confirmed we must then focus our attention on. It is always best to do a parasitic draw test from the negative side so there is no chance of accidentally shorting should you test from the positive side.
Comparing your device battery drain to another device battery drain is pointless.
Comparing your device battery drain to another device battery drain is pointless. Remember that the drain doesnt have to take your battery to zero overnight just low enough for it to not start. Connect the Negative Lead from the Multimeter to the Positive Lead you removed from the Battery. Simple test circuit using a comparator and reference to measure battery drain.
