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DickB
07-11-2022, 05:29 AM
If your battery is going dead after the bike sits for a few days, and the battery tests good or you believe it is good, the next step is to conduct a Parasitic Current Test. It's not hard to do and doesn't take much time. You'll need a multimeter for this test. If you don't have a multimeter in your toolbox, you should. A best seller on Amazon is only $13.

https://youtu.be/MBnbsrrwMkk

SportsterDoc
07-11-2022, 09:05 AM
Most constantly energized devices, such as ECU, regulator; should not exceed about 1 milliamp each.