Yamaha YZF-R9 Battery
2025–2026. The OEM battery case the YZF-R9 takes, the lithium that drops into it, and every model year we have on file. One case across the whole run. Also written YZFR9.
2026 Yamaha YZF-R9
- OEM battery
- YTZ7SYuasa 2026 OEM guide
- Case family
- YTZ712V starter case
- Fits all years
- 2025–2026same case every year on file
The Yamaha YZF-R9 takes the YTZ7S case. The Antigravity ATZ-7 RE-START is a drop-in for that case: 150 cranking amps, 1.3 lb, a built-in jump start that saves enough charge to get you home.
See the Antigravity ATZ-7
YZF-R9 battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 2025–2026Your year · 2026 | OEM batteryYTZ7S12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATZ-7 RE-START → |
Trim covered: YZF-R9.
Shop all Yamaha batteriesWhat the YZF-R9 needs, in plain English
Every YZF-R9 from the first 2025 model through 2026 starts on the YTZ7S 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 ATZ-7 RE-START: 150 cranking amps, 1.3 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.