Amps DC from RR - how many you ask?

dcarver · Aug 13, 2017

2017-08-12 KrZy8 Charging Amps

Had rear tire off for new shoes.. decided to take quick measurement of charging amps right off RR. Electrical loads on

Hi Beams
Brake lights
Fans
Aux lights (Clearwater Ericas, Darlas)
Aux fuel pump
Radar detector
GPS
Oops, no heated jacket, it was 102F

There it is, 40 amps DC, 13.7 VDC on voltmeter, ~ 3,500 rpm.

RossKean · Aug 13, 2017

The thing is a motorcycle, not a ****** rolling nuke plant! Running pretty close to the edge.

Fans will only ever be on a small percentage of the time and likely no need for two sets of LEDs running when fans are needed. High beams don't add much to the total because Low are off when High is on. Probably no more than an amp difference? Aux pump doesn't run much. Brake lights inconsequential unless you are decending a mountain somewhere.

Did you add loads incrementally to see what devices took how many amps? Look at some LED replacement headlight bulbs while you're at it. Especially if running two sets of heated gear! Edit: Fans unlikely to be running at the same time as heated gear. Even though a jacket may be 90 W, it is cycled on maybe 25% of the time unless it's REALLY cold.

dravnx · Aug 13, 2017

Stated specs on the Gen III is 590 watts @ 13.9 VDC.

42 amps capacity.

dcarver · Aug 14, 2017

RossKean said:
The thing is a motorcycle, not a ****** rolling nuke plant! Running pretty close to the edge.
Fans will only ever be on a small percentage of the time and likely no need for two sets of LEDs running when fans are needed. High beams don't add much to the total because Low are off when High is on. Probably no more than an amp difference? Aux pump doesn't run much. Brake lights inconsequential unless you are decending a mountain somewhere.

Did you add loads incrementally to see what devices took how many amps? Look at some LED replacement headlight bulbs while you're at it. Especially if running two sets of heated gear! Edit: Fans unlikely to be running at the same time as heated gear. Even though a jacket may be 90 W, it is cycled on maybe 25% of the time unless it's REALLY cold.

I did not, Ross. I was only interested in a near - worst-case scenario. I ordered an Eastern Beaver headlight elimination kit for Naomi.. shuts one lamp down when under high current consumption mode.