EVO All Evo Model Discussion

1998 flht electrical charging system

Thread Tools
 
Search this Thread
 
Old Sep 30, 2021 | 08:25 AM
  #1  
phildavis289's Avatar
phildavis289
Thread Starter
|
2nd Gear
Joined: Jun 2021
Posts: 6
Likes: 0
From: St Louis
Default 1998 flht electrical charging system

If I replace the original headlight and passing lights on 1998 flht with led lights will it put less strain on the charging system?
 
Reply
Old Sep 30, 2021 | 08:27 AM
  #2  
0maha's Avatar
0maha
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2012
Posts: 6,555
Likes: 4,799
From: Omaha
Default

Yes.

(And yes again, thanks to HDF's minimum message length requirement)
 
Reply
Old Sep 30, 2021 | 08:39 AM
  #3  
t150vej's Avatar
t150vej
HDF Community Team
20 Year Member
Community Favorite
Top Answer: 3
Joined: Dec 2005
Posts: 5,404
Likes: 2,605
From: NC USA
Community Team
Default

Originally Posted by phildavis289
If I replace the original headlight and passing lights on 1998 flht with led lights will it put less strain on the charging system?
Be careful and look closely at the specs (current draw) on the particular bulbs you're looking at as the replacement. Many actually use much more wattage than the original incandescent bulbs. But, they are a LOT brighter too.
 
Reply
Old Sep 30, 2021 | 10:06 AM
  #4  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,143
Likes: 12,707
From: South Carolina
Default

I don`t think it will put less "strain" on the charging system, but the wires going to the headlight will be carrying less amperage...

The alternator puts out max power all the time, no matter what the electrical draw is.

The voltage regulator keeps the voltage at approximately 13.5 volts by converting the excess to heat.
 
Reply
Old Sep 30, 2021 | 12:33 PM
  #5  
86glider's Avatar
86glider
Road Warrior
5 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2016
Posts: 1,528
Likes: 933
From: Long Island
Default

I’ve seen my voltage on the gauge a steady 13.5 since switching over to led.And sooo much better at nite.
 
Reply
Old Sep 30, 2021 | 12:48 PM
  #6  
WP50's Avatar
WP50
Seasoned HDF Member
15 Year Member
Photogenic
Photoriffic
Joined: Apr 2011
Posts: 6,185
Likes: 2,134
From: W. Texas
Default

I guess if you were adding stuff that used alot of amperage to the bike LEDS might help some. (heated gear , stereo amp, ton of lights)

The stator puts out what it puts out. The voltage reg controls what the components on the bike get.
LEDS do help to lesson the load on wiring , switches, and connectors going to components.

In years gone by it was common to use leds on bikes with a smaller stator system (26-30 amp I think) when running alot of lights or heated gear.
Consensus was it helped them

WP
 
Reply
Old Oct 3, 2021 | 08:55 PM
  #7  
Dano523's Avatar
Dano523
HDF Community Team
5 Year Member
Top Answer: 1
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
Community Team
Default

Shunt type regulator, so what voltage is not used, is just shunted to ground to cause increased heat instead.
 
Reply
Old Oct 4, 2021 | 01:50 PM
  #8  
im's Avatar
im
Seasoned HDF Member
Joined: Feb 2007
Posts: 6,081
Likes: 1,127
From:
Default

Originally Posted by phildavis289
If I replace the original headlight and passing lights on 1998 flht with led lights will it put less strain on the charging system?
Sometimes a question is asked without parameters or reason for question.
In this case the bike is a 1998 FLHT and made it this long without a need to change lights.
The factory charging system for that year can easily handle the demands of the original lights.
What is the present concern? for example are you trying to get more light? or did you need to add numerous heating gear items for 2 people?
Do you feel there is a strain on charging system?
What charging system does your bike currently have?
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ABQ-Jammer
Electrical/Lighting/Alarm
5
Oct 2, 2019 10:59 AM
BinIdaho
Tri Glide, RG3 & Freewheeler Models
2
Feb 10, 2019 06:00 AM
Limited2017
Touring Models
4
Jun 20, 2017 05:24 AM
SoZoomMe
Touring Models
12
Oct 2, 2015 09:43 AM
tennheritage
Softail Models
3
May 16, 2015 07:46 AM




All times are GMT -5. The time now is 08:52 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE