Parasitic Battery Drain

[Leaky Waders]

I have a 2019 GL1800 Tour DCT with a CSC conversion. Using a multimeter, I have isolated a 15A fuse labeled "AUDIO" as the source of a parasitic battery drain. Now that I know the source, generally speaking, how do I hone in on and correct the problem? TIA.

Paul

[rhino 2]

I have a 2019 GL1800 Tour DCT with a CSC conversion. Using a multimeter, I have isolated a 15A fuse labeled "AUDIO" as the source of a parasitic battery drain. Now that I know the source, generally speaking, how do I hone in on and correct the problem? TIA.

Paul

Does the radio have a clock ⏰…If so that’s a normal draw…

[Leaky Waders]

Does the radio have a clock ⏰…If so that’s a normal draw…

Thanks for the reply Bob. Yes, the radio has a clock. It's back to the drawing board to determine what is draining a healthy battery overnight when disconnected from the battery tender. Wish me luck.

[rhino 2]

Thanks for the reply Bob. Yes, the radio has a clock. It's back to the drawing board to determine what is draining a healthy battery overnight when disconnected from the battery tender. Wish me luck.

Ok…Back to more details…How old is the battery? ..

[GoldWingrGreg]

How much draw ??? Less then a total of 1.2 mA is acceptable. Anything added to that circute ... have you wired in a MP3 player ???

[rhino 2]

Ok…Back to more details…How old is the battery? ..

Have you checked the voltage on the battery a few minutes after you take it off of the maintainer or did you do a load test’ anything under 12.7 V it sounds like a bad cell and if so you need to replace that battery…

[Leaky Waders]

Ok…Back to more details…How old is the battery? ..

The battery is about one month old.

[Leaky Waders]

How much draw ??? Less then a total of 1.2 mA is acceptable. Anything added to that circute ... have you wired in a MP3 player ???

0.4 milliamps draw, this appears to be within normal limits. There is no MP3 player

[rhino 2]

The battery is about one month old.

It’s not unheard of for new batteries to give up the ghost…. did you do a voltage check?..

Or a load test….?

[Leaky Waders]

It’s not unheard of for new batteries to give up the ghost…. did you do a voltage check?..

Or a load test….?

Both.

Load test done at the auto parts store where I purchased the battery.

Battery voltage reads 13.05

[rhino 2]

Both.

Load test done at the auto parts store where I purchased the battery.

Battery voltage reads 13.05

...Then i'm out of ideas....When you find out what the problem is/was....Please post it.

[Leaky Waders]

Have you checked the voltage on the battery a few minutes after you take it off of the maintainer or did you do a load test’ anything under 12.7 V it sounds like a bad cell and if so you need to replace that battery…

Yes to both questions. Battery is good. I also checked the ground and found no drop in voltage.

Alternator increases amp meter volt reading on start up.

If I park trike overnight off battery tender the battery is too weak to start it up.

[Leaky Waders]

...Then i'm out of ideas....When you find out what the problem is/was....Please post it.

I sure will. Thanks for your help!

[Jack Klarich]

Have you done a full charging system test to confirm it is working properly ?

A bad diode could quickly drain a battery over night

You say if you do not use a battery maintainer over night the battery is too weak to turn the engine over?

If that is true you have a bigger drain on the battery, the battery is shorted and does not hold a full charge, or the charging system is laying down, possibly bleeding diode robbing power

Pull the battery, charge it then have it load tested, do a charging system test and report your findings, just checking voltage @ the battery does not tell the whole story

[rhino 2]

Pull the battery, charge it then have it load tested, do a charging system test and report your findings, just checking voltage @ the battery does not tell the whole story

See post #11…..