How many Amps do our bike charge at ?
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Seasoned HDF Member
Joined: Jan 2010
Posts: 7,379
Likes: 3,347
From: usa
All charging systems are built for volts and amps . The upper charger is 12 / 1.25 and the lower charger is 12/2 or 12/10.
So when our bikes are running what does the system put out . 12/ ?
Club Member
Joined: Sep 2010
Posts: 15,424
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From: Beyond Fucital
14.5 volts at 1100 RPM min. But it puts out volts, not amps.
The stators vary in amps by years my 94 is 32 amps.
It's sized by the load of the bike, lights and acc.'s
The stators job is to keep up with the load draw on the battery, to much draw kills the stator.
Like if the battery starts to fail the stator tries to supplement the difference and burns itself out.
I'm sure you've heard that a bad battery took out a stator, this is why.
The stators vary in amps by years my 94 is 32 amps.
It's sized by the load of the bike, lights and acc.'s
The stators job is to keep up with the load draw on the battery, to much draw kills the stator.
Like if the battery starts to fail the stator tries to supplement the difference and burns itself out.
I'm sure you've heard that a bad battery took out a stator, this is why.
Seasoned HDF Member
Joined: Oct 2012
Posts: 13,061
Likes: 12,988
From: Texas, USA
Actually, my comment was a play on words. You said WHAT'S a few volts and I said WATTS is a few volts x (times) a few amps.. It had nothing to do with the OP.
Also, I thought amps would be watts/volts ???
Also, I thought amps would be watts/volts ???
Stellar HDF Member
Joined: Apr 2012
Posts: 3,117
Likes: 1,193
From: Maryland
When the bike is running - it's not 12/?.
The system is voltage regulated - in the range of ~ 13.5V to 14.5V. Current is dependent on the load at any given time.
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Grand HDF Member
Joined: Jan 2010
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From: Vancouver BC
What is the current rating on the bike’s main fuse? Subtract roughly 20 percent of that and this will be the MAXIMUM amount of peak current (amps) that your bike will draw at any given instant, including the battery’s charging current. Your average running or operating current will be much less depending on the accessories turned on. Your absolute maximum normal current draw will be when you hit the starter button, most electrical systems will disconnect momentarily to allow all the Battery’s available current to turn the starter and ignition. After the bike starts everything else will power up and your battery will pull varying amounts of current as it recharges itself from that initial deep starter current depletion.