Yamaha TTR125 Battery
2003–2015. The OEM battery case the TTR125 takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.
2015 Yamaha TTR125
- OEM battery
- YTX4L-BSYuasa 2026 OEM guide
- Case family
- YTZ712V starter case
- Fits all years
- 2003–2015same case every year on file
The Yamaha TTR125 takes the YTX4L-BS 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
TTR125 battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 2003–2015Your year · 2015 | OEM batteryYTX4L-BS12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATZ-7 RE-START → |
Trim covered: TTR125.
Shop all Yamaha Dirt Bike batteriesWhat the TTR125 needs, in plain English
Every TTR125 from the first 2003 model through 2015 starts on the YTX4L-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 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.