Is my charging voltage too high?
#11
12-29-2018, 01:01 AM
#12
01-04-2019, 09:17 AM
Club Member
Being convinced the regulator is fubar, I ordered a replacement from Surdyke. List of $232, sell,price $174, offset $50 for what would be the deductible. This is not the first time I’ve done my own repairs whilst a bike was in warranty. One of the reasons I will not get an ESP.
#13
01-05-2019, 12:08 PM
#14
01-05-2019, 12:19 PM
I’ll be interested what happens when I replace the voltage regulator. . Oh yeah, I was an electrical/electronic engineer. It’s not hard to design a voltage regulator that operates in a tight tolerance range. Either a very crappy design, or marginal components would allow a voltage regulator to drift over 0.5 Volts.
Ill have better peace of mind with a tighter control range.
Niw, I’m just waiting for Surdyke to ship my regulator.
#15
01-10-2019, 06:32 PM
i don’t agree with the spec. As well, there’s a reason why there is a red section on the built in volt meter, and I’m not happy when the needle is at the 1/2 way point in the red. Further, all the technical information I’ve read, other than the HD spec indicates 14,7 is the maximum.
I’ll be interested what happens when I replace the voltage regulator. . Oh yeah, I was an electrical/electronic engineer. It’s not hard to design a voltage regulator that operates in a tight tolerance range. Either a very crappy design, or marginal components would allow a voltage regulator to drift over 0.5 Volts.
Ill have better peace of mind with a tighter control range.
Niw, I’m just waiting for Surdyke to ship my regulator.
And as an engineer, why would you knowingly buy a marginal part again?
#17
01-12-2019, 10:56 AM
I am kinda late wading in late to add my dos centavos here. I have a few years experience with automotive charging systems and in my experience, 15 vdc is on the high side for charging a new 12.6 vdc automotive charging system, and it should go down as the battery charges. If your battery is not relatively new and your system just started reading this high one day, then it is indicating an issue that needs addressing before it becomes a problem. It is interesting that your indicator red line starts at 15.1 volts and this is supposed to warn you of an issue yet the dealer techs verified that the system is operating within the published high range, which is inside the red line warning range.
#19
03-28-2024, 12:48 PM
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#20
03-31-2024, 09:19 PM
it was a long time ago, for my old brain, but as I recall the charge voltage dropped to a better level that I was comfortable with. And because I’m OCD…I bought a spare that I never needed, and then later sold it.
Last edited by TriGeezer; 03-31-2024 at 09:29 PM.
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