Erratic charging voltage

MexicoMike · Jan 2, 2020

FWIW, last year I stuck a little LED voltmeter on my top clamp - thought it would be a handy thing. At low rpm it worked fine but at higher speed/load it would go all over the place voltage-wise - from 0V to 14-15V. Clearly it couldn't get along with the ignition system interference.

Bernhard · Jan 3, 2020

Or the vibrations from the engine were your top clamps are not rubber mounted.

maylar · Jan 3, 2020

MexicoMike said:
FWIW, last year I stuck a little LED voltmeter on my top clamp - thought it would be a handy thing. At low rpm it worked fine but at higher speed/load it would go all over the place voltage-wise - from 0V to 14-15V. Clearly it couldn't get along with the ignition system interference.

Great minds think alike - I did exactly the same thing -

Got it off Amazon, wired it into the headlamp shell. Works great. It's hopefully temporary, as I'm now fitting an Eclipse LED monitor.

batrider · Jan 3, 2020

I bought a little digital voltmeter from Battery Tender that plugs right into my charging pigtail. I have the Eclipse single LED voltmeter too and find it not bright enough in the daytime (which is when I ride). Have also used the Signal Dynamics unit. Still looking.

Erratic charging voltage

MexicoMike

Bernhard

maylar

batrider

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