Kawasaki ZR550 Zephyr Battery
1990–1992. The OEM battery case the ZR550 Zephyr takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.
1992 Kawasaki ZR550 Zephyr
- OEM battery
- YB12A-AYuasa 2026 OEM guide
- Case family
- YB12A-A12V starter case
- Fits all years
- 1990–1992same case every year on file
The Kawasaki ZR550 Zephyr takes the YB12A-A case. The Antigravity ATX12 RE-START is a drop-in for that case: 360 cranking amps, 3 lb, a built-in jump start that saves enough charge to get you home.
See the Antigravity ATX12
ZR550 Zephyr battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 1990–1992Your year · 1992 | OEM batteryYB12A-A12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATX12 RE-START →Antigravity ATX12-HD RE-START → |
Trim covered: ZR550 Zephyr.
Shop all Kawasaki batteriesWhat the ZR550 Zephyr needs, in plain English
Every ZR550 Zephyr from the first 1990 model through 1992 starts on the YB12A-A case, a 12-volt starter battery. Kawasaki 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 ATX12 RE-START: 360 cranking amps, 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.