Battery Charging - Wrist Twisters
 
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post #1 of 3 Old 01-11-2014, 06:54 AM Thread Starter
Tirone
 
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Battery Charging

I've been told that the battery is charged only when the bike is "under load" meaning being ridden and not when sitting still with the motor being revved? Is this true?

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post #2 of 3 Old 01-11-2014, 07:09 AM
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The output of the alternator increases with engine RPM, I don't believe it's load dependent.

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post #3 of 3 Old 01-11-2014, 08:10 AM
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Regardless of the load on the engine the charging system has what is called a "break even point", referring to the engine RPM at which there is sufficient output from the alternator to handle all electrical loads. Generally, it's right around 2,200 RPM. This figure drops if the headlight fuse is pulled, though I doubt if it drops to idle speed. Below the break even point the battery has to make up the difference, so if the battery is in a low charge condition removing the headlight fuse is a good idea if you want to hasten the recharge while riding in town.

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