
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.
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
Great battery made in the USA. Mine is coming up on two years old, and still spins my Honda Goldwing 1832cc 6 cylinder motor
effortlessly. It has plenty of capacity to run the electronics while parked for long periods. Excellent value and fast shipping. The
battery was simple drop in installation. Need a battery for your bike, this is the one.
Fit perfect and quick shipping! Packed very well.
This is my second purchase of this battery. My first one was bought March 2013!
The only reason it was giving me trouble was I didn't start the bike for almost 6 mos, and that neglect caused the battery to fade in starting ability. Make no mistake, it would still crank but much slower. I wanted the original snap of start I was used to. Battery Mart is the only place I buy from.
This battery was a direct drop-in, and voltage stays well maintained. Will order again.
Battery was a fair price, better specs & less expensive than oem, fit perfectly and shipped for free. Couldn’t ask for better service.
Harley Davidson. For installation, has spacer for each terminal, which makes more troublesome to put screw on terminal. Would buy again.
perfect.