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Yamaha YFZ450X Bill Balance Battery

2010. The OEM battery case the YFZ450X Bill Balance takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.

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2010 Yamaha YFZ450X Bill Balance

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OEM battery
YT7B-BSYuasa 2026 OEM guide
Case family
YT7B12V starter case
Fits all years
2010same case every year on file

The Yamaha YFZ450X Bill Balance takes the YT7B-BS case. The Antigravity AT7B-BS RE-START is a drop-in for that case: 180 cranking amps, 1.5 lb, a built-in jump start that saves enough charge to get you home.

See the Antigravity AT7B-BS

YFZ450X Bill Balance battery by model year

2010Your year · 2010OEM batteryYT7B-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity AT7B-BS RE-START →

Trim covered: YFZ450X Bill Balance Edition.

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What the YFZ450X Bill Balance needs, in plain English

Every YFZ450X Bill Balance from the first 2010 model through 2010 starts on the YT7B-BS case, a 12-volt starter battery. Yamaha ships it with a lead-acid battery that starts to fade after two or three seasons of short rides and off-season storage, and that is usually the day a rider goes looking for something better.

The lithium drop-in is the Antigravity AT7B-BS RE-START: 180 cranking amps, 1.5 pounds, the same case in lithium. Its RE-START function puts the battery to sleep before a parasitic draw can drain it, then wakes it with one press for a jump start. Charge it with a lithium-compatible charger or maintainer for the off-season and it outlasts the lead-acid battery it replaces by years.

What size battery does a Yamaha YFZ450X Bill Balance take?+
The YT7B-BS case, the same one on every YFZ450X Bill Balance from 2010 to 2010. The Antigravity AT7B-BS RE-START is the lithium drop-in for it.
Will a lithium battery work in a YFZ450X Bill Balance without changes?+
Yes, on a machine with a healthy charging system: the lithium battery uses the same case, the same posts and the same cables, and it drops in where the lead-acid battery sat. Check that the stator and regulator hold a steady charge, fill any gap in the tray with the foam spacers most lithium ATV batteries include, and match the terminal layout of the battery you are replacing.
Do I need a different charger for a lithium ATV battery?+
Use a charger or maintainer with a lithium (LiFePO4) mode. A lead-acid trickle charger can push the wrong voltage profile, and a desulfation mode can damage a lithium pack. A lithium-profile maintainer over the off-season keeps it topped without harm, and the battery loses only a few percent of charge a month sitting on its own.