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2021 POLARIS RZR 900 Trail Sport
Delete this machine from profileSelect this machine2020 POLARIS Sportsman 570 X2
Delete this machine from profileSelect this machine2016 POLARIS RZR XP 1000 High Lifter Edition
Delete this machine from profileSelect this machineWhen you’re ready to ride at the motocross track or on a scenic trail, nothing beats the convenience of a good battery that is ready to go. So if your battery is on the decline, make life easy again with a new dirt bike battery from Rocky Mountain ATV/MC. We carry a variety of dirt bike batteries to suit every style and budget.
We have traditional lead-acid batteries, lithium ion batteries and gel cell batteries. We carry leading brands like YUASA, Ballistic, Shorai, Antigravity, Bike Master and more. All you need to do is enter your bike’s make, model and year, and we’ll show you exactly which batteries will fit your motorcycle. (If you prefer to stick with the OEM battery, just click the OEM button at the top of the page.)
Even if your existing battery is still going strong, there are plenty of reasons to replace it with a better aftermarket one. For example, a maintenance-free battery can remove the headache (and risk) of continually checking and adjusting acid levels. And if you’re looking for a lightweight motocross battery, there’s nothing better than lithium ion! It’s one of the fastest (and cheapest) ways to shave a pound or two off of your motorcycle’s weight.

Daniel in TX
Good battery. Came with detailed instructions. Acid packaged separately. Worked good as intended.
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Christian in AL
I cant say enough good things about this battery. For the money I was skeptical. However it runs my lights and starts perfectly every time over the last 6 months. Ive even left my running lights on (tusk lighting kit) on accident overnight and it still spun the bike over without hesitation. Not once has it died on me. Would buy again
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Tyler in UT
This battery is crazy light weight. The box will feel empty when it arrives, but it's in there. It has delivered a very strong pull all year now. Even in the winter this can hold enough power to crank just like the summer.
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JOHN in AZ
Compact, perfect fit, lightweight, holds charge, excellent cranking power
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Ryan in KS
Usually use the Tusk batteries but didnt have this particular one so yuasa came through. Cant beat an oem manufacturer. Fit perfect and worked perfect. No complaints
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Paul in WA
The tusk tec core battery was easy to fill and install. I charged it after filling and then installed it. Works perfectly
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