
Product Specifications for USA-Made Big Crank™ ETX20L Battery
BM Part #: | ETX-20L |
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Made In: | U.S.A. |
Battery Polarity: |
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Voltage: | 12 Volt |
Capacity: | 17.5 Ah |
Type: | AGM |
Length: | 6.88" |
Width: | 3.44" |
Height: | 6.00" |
Cold Cranking Amps: | 310 CCA |
Shipping Weight: | 17.00Lbs |
Warranty: | 1 Year Pro-rated |
- Made in the USA. Why it matters:
- Superior craftmanship; rigorously tested; high-quality parts.
- Great OEM replacement with an easy installation design.
- This 12V AGM motorcycle battery ships fully charged and ready to install!
- Maximum performance and efficiency.
- Superior starting power, high reserve capacity, and long lasting life.
- Maintenance-free advanced AGM technology.
- Vibration Resistant Leakproof, and Spillproof.
- Environmentally friendly, 100% recyclable.
- New bolts included in every package.
- Also, includes brass spacers necessary for side mount cable installation.
Product Description

You've just discovered a best seller.
Want to know a secret?
The Big Crank ETX20L battery offers the most advanced power and value in the industry, and is ideal for ATVs/UTVs, motorcycles, personal watercraft, and snowmobiles.
Our competitors are so jealous of our American made Big Cranks that they list "Replacement for Big Crank" and try to substitute an inferior grade imported substitute. Be wary of cheap knockoffs, ONLY batterymart.com carries the wildly popular BIG CRANK ETX20L.
The Big Crank ETX20L Battery has become extremely popular because of the value it provides. With its spillproof and leakproof design, this is not a 12V AGM motorcycle battery that will need to be replaced frequently, or require high-level maintenance. The Big Crank Battery's terminals are versatile, with increased strength and durability. Our customers also love the ease of installing this battery. But don't take our word for it! Check out over 1,000 customer reviews! Many of our customers tell us this battery has lasted them better than half a decade, which is why we're not afraid to guarantee your satisfaction, 100%. Battery Mart will refund the purchase price of your battery if it fails to meet your expectations in any way.
So what makes this battery so popular? Features:


- Sealed, Maintenance-Free
- Leakproof/Spillproof
- Ships fully charged and ready to install
- Environmentally friendly, 100% recyclable
- Vibration Resistant Design
- Made in the USA
- New bolts included
These batteries are made in the USA. Just think; if every American spent at least $64 on something made in America, we could create 200,000 jobs right now!
Dealers sell the ETX20L for $148.99 and more. We buy the ETX20L 12V AGM motorcycle battery direct from the manufacturer, and pass the savings directly to our customers- no middleman!
Order today and receive free standard shipping on your USA-Made Big Crank Battery.
Tech Tip: Easy Front Mount Installations
This battery is supplied with unique terminal hardware (2 spacers and 2 bolts for cable to terminal connection). This hardware is required for proper installation on certain applications. Other hardware may damage terminals and should not be used. The spacers are required for front mount cable installation only! The top mount position does not require the round spacers, use supplied bolts only. Torque bolts to 6 to 8 ft. lbs. How A Front Mount Looks when Installed: |
Cross Reference
Customer Reviews
I was going through batteries every other year. But this battery lasted 8 to 10 years.
Best deal in batteries! Made in the USA! Second batteries for my 2012 FXDWG. First one lasted just a month shy of 5 years! Expect the same from this new replacement. Excellent starting power. Have Big Crank in two of my other bikes as well!
Bought the Big Crank for my Roadmaster. Fit perfect and spins the motor over faster. I’ve had this battery in my Harley road king with great result’s also.
I have a 2020 Indian Challenger and have had battery issues since the day I bought it. Indian YUSA batteries that came with the bike are pure junk. I have run Big Crank batteries in my Harley for years. Starts great everytime even when off a tender for a long period of time. Installed the Big Crank in my Indian and seemed to have fixed the battery issue. Has not been on a charger for over 10 days and still starts perfectly. Used to get about a day and a half with the YUSA.
Like the title says, Great Battery at a great price. Please don't raise the price just because I said that!!
This is the second battery I have purchased from this company for my Harley Davidson's. Easy website, good pricing, excellent delivery with super packaging and always good quality product. Highly recommend.
Was here in 2 days all the way from Virginia to Western border Arizona.
A great motorcycle battery at a great price!