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Built, charged, and checked by techs. Drops in and works.

We don’t rush batteries out the door. We do five things so it works when you turn the key:
Pro Tip: Want it to last 8–12 years? After you park, plug in a smart maintainer. That habit keeps it topped up and ready.
See all the details → View Our Super Charging Process Here.
Direct replacements (model numbers): YTX9B-BS, WPX9B-BS, MS12-9B-BS, ES9B-BS, ET9B-BS, WP9B-4, PT9B-4, GT9B-4, YT9B-BS, CTX9B-BS.
Need help? Contact us and we’ll make sure you get the right battery for your machine — our team rides and is here to help.
Battery: 2-Year Full Replacement — no proration, no hassle. If it fails within 2 years, we replace it.
Keep this battery topped up between rides with the BRS612 smart maintainer — a 60-second habit that helps riders see 8–12 years from our batteries. The eyelet plug adapter makes it plug-and-go: mount it once under the seat, then just connect after each ride.
Details: BRS612 product page
No. It ships charged and ready.
Machines sit. A maintainer keeps it topped so it starts when you need it and helps maximize lifespan.
On the face label (e.g., YTX9B-BS). This BRS9B-BS replaces that size.
We soak, form, and test each one. No acid splash-and-dash. That’s why it cranks harder and holds charge longer.
AGM runs in tough weather. Keep it charged and it handles winter starts well.