04-29-2018, 07:28 PM
Curious little sound?
Instead of getting into meters and measuring current draw and voltage drops; I’d suggest a simpler approach.
Disconnect the negative lead of the battery tender device (leave the positive on).
Turn on, do you still have the sound?
If No; it’s the battery tender device or negative connection*
If Yes; disconnect the positive lead of the battery tender device, and check again.
As max mentioned; make sure the bike cables are the first to contact the battery posts, then the tender leads (ie, tender lead goes through the battery bolt first, then the bike cable).
Instead of getting into meters and measuring current draw and voltage drops; I’d suggest a simpler approach.
Disconnect the negative lead of the battery tender device (leave the positive on).
Turn on, do you still have the sound?
If No; it’s the battery tender device or negative connection*
If Yes; disconnect the positive lead of the battery tender device, and check again.
As max mentioned; make sure the bike cables are the first to contact the battery posts, then the tender leads (ie, tender lead goes through the battery bolt first, then the bike cable).