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750mA SuperSmart Battery Tender

Part Number 66000038



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Compact Battery Tender is superior to a traditional auto-parts store "trickle charger." The built-in "smart" circuitry cycles the charger to turn itself on and off as needed, so your battery never overcharges.

  • Includes a quick-disconnect 7.5 Amp fused Battery Charging Harness with ring terminals that can attach to the battery screw terminals for easy connection, and a 7.5 Amp fused alligator clip charging harness
  • Accepts North American voltage (120V), supplied with 2-prong un-polarized plug
  • Charger output lead is equipped with quick-disconnect black connectors
  • Output is 12 VDC @ 750 mA
  • For use in USA, Canada, Mexico and South America (except Argentina)
  • Typical Recharge Time: 8-12 hours

For 12-volt batteries. (United States, Canada, Mexico and South America (except Argentina). Accepts North American Voltage (120V).

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  • Model
  • Water Resistant

  • Output Voltage

    12.0 Volt
  • Output Current

    0.75 Ampere
  • Input Voltage

    12 VDC @ 750 mA
  • Maximum Charge Rate

    7.50 Ampere
  • Recharge Time

    8-12 hours
  • Warranty

    5 year manufacturer's warranty – Go to for full details
  • Sold in Unit

  • In The Box

    Quick-disconnect 7.5 Amp fused Battery Charging Harness with ring terminals and a 7.5 Amp fused alligator clip charging harness
750mA SuperSmart Battery Tender - US is rated 4.7 out of 5 by 32.
Rated 5 out of 5 by from Exactly what I was looking for My battery was totally dead, but I put this on over the weekend and by Sunday it was back to life! Living in Minnesota, the winters get pretty cold and I don't have a heated garage. Even in below freezing and sometimes sub-zero temps, this thing has been working for me all winter.
Date published: 2017-01-16
Rated 5 out of 5 by from Battery tender Great product. I installed the cables let them hang out on left side just a little easy plug in tender keeps battery fresh in storage now charging great
Date published: 2017-01-14
Rated 5 out of 5 by from battery tender My last Harley branded tender lasted 12 years of continuous use, no complaints. The new one so far has worked flawlessly. It is also slightly smaller and much lighter than the old one. very happy with purchase
Date published: 2016-12-29
Rated 5 out of 5 by from Works Great! I bought it, it works great, I'm happy! Just plug it in, and that's pretty much it!
Date published: 2016-12-19
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Light is out on charger

I have a little older version of this charger. I plugged it in and the light was amber for a few hours, then it turned green. I store my bike in a heated garage at my brother in laws house. The light on the charger is now off. There is power to the outlet and to the charger. Is there something wrong with the charger itself or is it supposed to shut off after the battery is charged fully?
Asked by: jwestenhaver
The 750 mAmp charger manufacturers instructions states if both amber & green light are out it depicts an abnormal condition and indicates there is a connection issue with your AC power. I would also put a volt meter on the connections and see if it charging. The simplest problem could be the unit light are not working. It might be time to replace the older model for around $39.00. Good luck and safe riding...,
Answered by: Ken103HO
Date published: 2017-01-29

How much does it weigh?

The Gross packet weight
Asked by: Christian7
The shipping weight for the 750 mAmp unit is Approx. 2.0 lbs (0.9 kg) This weight is rounded up to the nearest pound. And with Accessories & retail packging.
Answered by: Ken103HO
Date published: 2017-01-20

Can you use the alligator clips on a second bike to jump start your bike

Asked by: waldo
I wouldn't suggest jump starting another bike with the alligator clips that come with this 12 volt 750 mAmp constant monitoring battery charger. This supersmart 1.25 amp charger is for low amps and would not be capable for the amount of amps that it would require jumping another bike. The wire is small gauged and the resistance would melt the wire. Get a jumper kit that can handle the CCA's needed for the heavier task
Answered by: Ken103HO
Date published: 2017-02-18

The picture does not show a A/C power plug, is it included??

Asked by: Michael60
The battery charger housing has the A/C plug on the underside of the unit, comes with aligator clips, and the two pin connector that comes stock off the battery wiring harness on most Harleys. Great little unit! I also plug mine in the a ground fault strip for the added protection. Good luck and safe riding! Ken
Answered by: Ken103HO
Date published: 2017-01-01

amber light blinking on tender. Means cannot charge. My battery is brand new is the problem that the battery is fully charged?

I also put a new battery on my riding lawn mower and have the same response with it. Will the tender begin operating correctly when the battery is a little older?
Asked by: Golly
With your continued blinking amber light, could mean also you have a bad connection on your battery post or a problem in your two pin connector or wiring. With a new battery can still have issues, do a load test to ensure your battery is ok. If you get a blinking green you are over 80 % solid green is fully charged, try your charger on your car to see if you have the same results. Good luck and safe riding! Ken
Answered by: Ken103HO
Date published: 2017-01-01
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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.