LED Indicator Battery Charging Harness

Part Number 66000005




Battery charging harness simplifies charging the battery.

  • Features an integrated LED indicator light that warns you when your battery voltage drops to a level that requires charging
  • Attach the ring terminals to your battery and route the harness for easy access to the plug connector
  • When the LED glows, its time to connect the bike to a Harley-Davidson® battery tender
  • Compatible with all Harley-Davidson® battery chargers
  • Features in-line 7.5 Amp fuse protection
  • Plug connector is protected with a weather-shield cap when not in use

For use with Harley-Davidson® 12-volt batteries.

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  • Model
  • Warranty

    1 year limited warranty – Go to for full details
  • Sold in Unit

  • In The Box

    Charging harness only
LED Indicator Battery Charging Harness is rated 3.6 out of 5 by 5.
Rated 4 out of 5 by from Works on 2017 CVO Street Glide I got this harness as a Xmas present. Installed on bike and noted LED was continuously flashing red. OEM instructions indicate to connect charger if LED flashes, so I did, bike charged, and LED stopped flashing. The LED will flash red if I leave the accessory circuit on for an extended period (like when listening to stereo while working on bike). I like not having to guess when to hook up my Battery Tender and I don't like leaving it connected for extended periods. One note, my bike comes stock with a charging harness with SAE connector, which is what I originally used for battery charging, plugging in my heated vest, etc. That harness is not connected directly to the battery like this one is, so I left it installed but coiled up under the left side cover.
Date published: 2018-01-19
Rated 5 out of 5 by from Battery LED quick connect I've had problems with batteries in the past. Device LED flashes to let me know the batteries condition plus easy connection to battery tender. LED doesn't drain the battery at all. Connection cover was a bit loose but holds during rides. Works as expected.
Date published: 2017-06-10
Rated 4 out of 5 by from Battery Charging Harness Overall this is a good product and works as advertised. I'd like to know the clip level as to when the LED light turns on? It can be unnerving to have it come on and the battery continuously starts the bike fine vs to know when it is really low and in danger of not starting.
Date published: 2016-08-18
Rated 4 out of 5 by from Workin Great on my '15 Street Bob Works as advertised. I gave 4 stars because I only give 5 stars to smokin hot women.
Date published: 2015-09-29
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What is the 3rd female pin?

What is the third female pin used for?
Asked by: Jerryjjn

At what voltage does the light begin to blink?

Asked by: WaltPriestley
Hello WaltPriestley, Thank you for contacting Harley-Davidson Motor Company with your question about Part#66000005 (LED Indicator Battery Charging Harness). While we take every customer question and try to answer it, there are some question about items that are Proprietary only for the company. Your question is a question that falls under the Proprietary information. We are unable to disclose the information. Thank you for your question.
Answered by: Iceman25
Date published: 2016-12-05

Can we use the harness as a source for accessory like heating equipment ?

Asked by: alaincd

Should I put extra wiring under the seat?

I will have a cig/plug to connect for my GPS & MP3 . The remaining wire: Can it be wound and secured under the seat to keep it out of the way? I, also, have the 'quick disconnect' to the battery to install.
Asked by: funkeeman
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    Prices listed are generally the Manufacturer's Suggested Retail Price (MSRP), excluding taxes and shipping. Prices at local dealerships may vary. All online orders will be fulfilled and shipped by
    Harley-Davidson Motor Company as the agent for the Selling Dealer.