Product advice: How to check your alarm's not draining your battery
How do I test for battery drain when my bike’s not in use? I think my battery's causing this.
Deanipops, MCN forums
You need an ammeter or multimeter set on amps. Take the negative lead off the battery and put the positive lead from the ammeter on it on it, then put the negative lead from the ammeter on the negative post on the battery so that it forms a circuit that will measure the drain. Remember, do NOT switch the bike on. If the ammeter reads more than 10-20 milliamps something is draining power. Remove the fuses one at a time to find which reduces the drain. Then check each circuit on that fuse.