Aprilia RS 50 Battery
1993–2005. The OEM battery case the RS 50 takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.
2005 Aprilia RS 50
- OEM battery
- YB4L-BYuasa 2026 OEM guide
- Case family
- YTZ712V starter case
- Fits all years
- 1993–2005same case every year on file
The Aprilia RS 50 takes the YB4L-B 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
RS 50 battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 1993–2005Your year · 2005 | OEM batteryYB4L-B12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATZ-7 RE-START → |
Trim covered: RS 50.
Shop all Aprilia batteriesWhat the RS 50 needs, in plain English
Every RS 50 from the first 1993 model through 2005 starts on the YB4L-B case, a 12-volt starter battery. Aprilia 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.