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Charging voltage question

Started by DavidR8, October 27, 2013, 02:45:59 AM

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DavidR8

October 27, 2013, 02:45:59 AM
I just checked the voltage on my new battery while the BluCat was running.

At idle, the voltage was initially 13.4 then rose to 14.1. Didn't drop a bit with lights on high, grip heaters on max.

Oddly, when I increased the rpm, the voltage dropped down to 13.1.

That the rpm would drop at higher rpm doesn't make sense to my uninformed mind...is the drop a function of increased ignition draw?
2006 Girly, stone stock!

DavidR8

#1
October 27, 2013, 03:16:30 AM
2006 Girly, stone stock!

Bixxer Bob

#2
October 27, 2013, 03:03:00 PM
they all do that sir...  :hat10
I don't want to achieve immortality through prayer, I want to achieve it through not dying...

Chris Canning

#3
October 27, 2013, 03:37:50 PM
My old Reg/Rec did the longer you keeped the revs going the lower it went  :icon_biggrin:

lukeman

#4
October 30, 2013, 06:11:37 PM
This is because the original R/R isn't great at shedding the extra volts, its most efficient at lower rpms.  If you put a newer style mosfet R/R on your bike it will hold above 14 at any RPM and run cooler to boot.

Chris Canning

#5
October 30, 2013, 06:21:35 PM
It's yes and no because I have a secondhand old style and fitted that and it did hold up voltage wise as opposed to my old one that didn't,the new one I fitted with the SS mod was even better.
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