Heated gear: how to calculate if it will overload my 2012 FLHR electrical system?
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Road Captain
Joined: Apr 2012
Posts: 529
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From: Minnesota
Heated gear: how to calculate if it will overload my 2012 FLHR electrical system?
I'd like to get heated clothing for myself and my wife, but am concerned about overloading my 2012 Road King's electrical system.
A pair of Gerbing gloves (2.2A) and jacket liner (6.4A) for each of us would be 17.2A.
How much total capacity does the electrical system have on a 2012 Road King?
How much is used with the bike running and passing lamps on?
Thanks!
A pair of Gerbing gloves (2.2A) and jacket liner (6.4A) for each of us would be 17.2A.
How much total capacity does the electrical system have on a 2012 Road King?
How much is used with the bike running and passing lamps on?
Thanks!
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
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From: Phoenix '53, '88, '09 Big Twins
09 manual lists charging system capacity at 35 to 50 amps at 3000 rpms. I'm strongly guessing closer to the lower number...
so you have maybe 18 amps left to run the lights ( say 125 watts total headlights and add the marker lights would be about 11 or 12 amps) charge the battery and run the ignition and radio.
looks pretty borderline
you could add a slave battery in a saddlebag to run the heated stuff maybe, that would buy you a few hours operation without loading down the charging system
mike
so you have maybe 18 amps left to run the lights ( say 125 watts total headlights and add the marker lights would be about 11 or 12 amps) charge the battery and run the ignition and radio.
looks pretty borderline
you could add a slave battery in a saddlebag to run the heated stuff maybe, that would buy you a few hours operation without loading down the charging system
mike
Road Master
Joined: May 2009
Posts: 867
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From: Brentwood, TN
I'd say go ahead as I doubt the heated gear will be run on high load all the time. Some of it gets pretty toasty on high if you have a jacket over it, unless its really cold out. My wife will not ride in that cold of weather. I do occassionally and have the HD gloves and liner.
Intermediate
Joined: Mar 2010
Posts: 32
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GF and I use heated gear from neck to toes, i.e. heated jackets or heated liners, heated gloves, heated pants and heated socks. Additionally, heated grips and a heated hammock seat; rider and passenger. Passing lamps, LED headlamp and LED tail light. We've had no issues powering all the gear and bike (09 RKC) on rides in cold weather. Added a H-D riser mounted radio, Zumo 660 GPS, LED signals (front and back) and changed to lower drawing LED headlamp. Don't anticipate there being any problems with the add-ons. Current draw is about the same as last winter. Drive all year round.
Grand HDF Member
Joined: Sep 2009
Posts: 3,807
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From: Green Country Oklahoma
We have 07 and 08 UCs and my wife uses most of her heated gears in winter from pants liner to jacket and socks and glove and also heated grips no issue with charging system or battery almost 5 year old.I always replace the stock fuse to a circuit breaker so I don't have to remove whole lot of crap to get to the fuse.
Last edited by Punjabi Rider; Aug 6, 2012 at 05:57 PM.
Thread Starter
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Road Captain
Joined: Apr 2012
Posts: 529
Likes: 2
From: Minnesota
Bought the Gerbings gloves and jacket liners for wife and myself. Used them today for the first time. Highway riding at 40 degrees into a 25mph wind. The heated gear worked great! The bike had no problem supplying the necessary power.
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From: Phoenix '53, '88, '09 Big Twins
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