Harley Davidson Lithium Battery Alternative

Want a reliable, long-lasting motorcycle battery with powerful cranking amps?

Of course! Who wouldn't?

These alluring words come from Harley’s website. In fact, they are the first words of the description for their lithium motorcycle battery, part number 66000175.

Now, if those words were true, that would be awesome!

Sadly, scrolling further down the page, the gloomy Harley-Davidson lithium battery reviews tell a different story.

Dismal Harley Battery Performance

As of 17 December 2021, the highest reviewed product had a 2.59 average rating.

Reading through the product description, customer reviews and Q&A section the reason for issues become apparent.

As a battery specialist, these findings are of no real surprise. Luckily for you, we have the solution, not only for their ill-fated lithium battery, but all the Harley-Davidson motorcycle battery problems.

Take a moment to read for yourself how actual Harley customers responded and what they said before you skip down to the solution.

Voice of the Customer: Harley-Davidson.com Battery Reviews

Below are some of the most recent reviews for lithium battery part number 66000175 posted on the Harley-Davidson.com website. Currently, there are 64 reviews, and the average rank is 2.59 out of 5 stars.

Voice of the Customer: Harley Davidson Lithium Battery Q&A

Actual questions asked and answered on Harley-Davidson.com website

Q: What is the difference between the non-California and the California battery?

A: California battery has a Proposition 65 Regulatory Label.


There are six (6) Original Equipment or OE Harley lithium battery part numbers. Well, maybe it is more accurate to say 3 lithium battery sizes multiplied by two based on the response to this customer’s question.

Q: Does the 6Ah Lithium LiFe battery have an internal Battery Management System (BMS)?

A: Our batteries do not have a BMS on them.


What in the world were they thinking? A BMS is vitally important and would reduce failure rates. Harley needs to re-evaluate the true cost of not providing a Battery Management System.

Q: Will I have to purchase a special battery tender, or can I use the old one from my AMG Harley battery??

A: You need 800 mA Weatherproof Dual Mode Battery Tender Part Number 66000181 your old (AGM) tender will not work. The AGM and Lithium battery have different full charge levels.


This true. Lithium and AGM motorcycle batteries have different chemistries and charge requirements. So why in the world would Harley offer a lithium battery without a BMS knowing that the charging systems on most of their bikes are designed for AGM batteries?

Answer to What’s the Best Harley Davidson Battery?

Pure lithium is NOT the answer. We spent years testing various lithium motorcycle batteries in search of the best candidate. I think it is fair to say we were not impressed with any of them!

We encountered Insane failure rates, inflated prices, sudden failure events, lack of capacity, and the need for special charging systems. All of this led to us severely throttling back the sale of lithium only batteries.

Here is the good news and the answer you are seeking!

We’ve been testing a new form of battery over the past 2 years. The results have been astonishing!

If you choose not to read the best Harley Davidson Battery article linked above, then watch this video instead.

The video illustrates one of the insane “powerful crank” tests completed to see if this new form of battery would go beyond the limits as it says on the box.

Can you think of a better way to demonstrate cranking power for your bike battery?

World's Most Reliable & Powerful Motorcycle Battery

Conclusion

Best Harley Battery

This new MotoBatt Hybrid battery checks all the boxes.

  • It has the highest cold cranking amps - CCA.
  • Plenty of amp hour capacity – AH.
  • Weighs significantly less than AGM batteries.
  • No special charging system required.
  • Warranty is 3x longer than Harley’s.
  • As of this writing... we have had zero failures.

MotoBatt Hybrid Batteries for Harley Bikes