Author Topic: What's the max Amperage?  (Read 1628 times)

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Offline Brian

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What's the max Amperage?
« on: April 10, 2017, 03:12:29 pm »
Hello, I have a few accessories added to my 2003 Connie. I've added heated grips, iPod/iPhone charger and Stereo with amplifier. I am wondering what the maximum drain in Amps that the bike can handle? I'm thinking about adding a heated vest to the mix but am concerned about having all these accessories running at once may damage something due to the draw.

Can anyone offer any advice in this regard?

Thanks in advance, Brian

Offline fred-houston

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Re: What's the max Amperage?
« Reply #1 on: April 10, 2017, 03:53:16 pm »
28.6A@6,000rpm,14V    ~400Watts is what I found when I looked into this several years ago.  Realistically probably 300 to 350 watts at normal running.  In traffic or idling, turn off the elect gear and aux lights.

If you are going to run a bunch of electrics, think about converting over to a ZZR1200 alternator it has a larger output.  45A / 13.5V @ 8000rpm

You also might want to consider installing a volt meter.
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Offline Pbfoot

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Re: What's the max Amperage?
« Reply #2 on: April 27, 2017, 12:44:33 am »
Doing the free power mod will help as well.
If you don't have time to do it right, when do you have time to do it over.                                                                17" wheels, Nissin 4 piston calipers.1kg Sonic Springs.Cartridge Fork Emulators. KB Brace. Galfer brake lines  Free power mod.

Offline RWulf

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Re: What's the max Amperage?
« Reply #3 on: April 27, 2017, 01:05:10 pm »
What ?

Offline Pbfoot

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Re: What's the max Amperage?
« Reply #4 on: April 27, 2017, 01:19:56 pm »
What ?
Adding a ground  from the igniter to the battery.
If you don't have time to do it right, when do you have time to do it over.                                                                17" wheels, Nissin 4 piston calipers.1kg Sonic Springs.Cartridge Fork Emulators. KB Brace. Galfer brake lines  Free power mod.

Offline Jorge

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Re: What's the max Amperage?
« Reply #5 on: May 01, 2017, 01:38:03 am »
Here's some quick comments from my experience...
I was running a GPS and two 55W halogen auxiliary lights, and at idle the alternator could not keep the voltage up. Never had any issues, but I could tell I was exceeding the alternator output. As soon as engien speed went about ~1200 RPM, alternator output exceeded loads. At idle I was slightly discharging the battery, and is something that many vehicles are designed to accommodate (bikes, cars, etc.), but if you drive in stop&go traffic, can wear you battery faster.
I switched to 35W bulbs, and the alternator was always able to handle the loads at idle.
Bottom line: Alternator can produce more than 70W, but less than 110W above what the bike needs to run with normal bulbs.
If you want to increase loads above the 70W number, consider changing headlight, front running lamps, and taillight LEDs. This could make as much as 60W, maybe a little more, available for accessories.
Jorge

Offline Rev Ryder

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Re: What's the max Amperage?
« Reply #6 on: May 01, 2017, 02:39:33 am »
The ZZR1200 alternator is the best cure for juice.  Not all that cheap, but can handle the load of big lights and electric gear all at the same time.   :great:
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Re: What's the max Amperage?
« Reply #7 on: May 15, 2017, 01:11:59 am »
Running big halogen lights these days is like riding a 10+ year old bike  :o
You can mange big draw from lighting by going to LEDs....  that'll free up
some power for heated gear and the like. 
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