Honda Sportrax 300 Battery
1988–2009. Honda changed the Sportrax 300's battery once across the run. Pick your year and we show the case that year takes and the lithium that fits it. Change any box in the strip to look up another machine.
2009 Honda Sportrax 300
- OEM battery
- YTX9-BSYuasa 2026 OEM guide
- Case family
- YTZ1012V starter case
- This battery fits
- 2001–2009other years take a different case
The Honda Sportrax 300 takes the YTX9-BS case. The Antigravity ATZ-10 RE-START is a drop-in for that case: 360 cranking amps, 2.6 lb, a built-in jump start that saves enough charge to get you home.
See the Antigravity ATZ-10
Sportrax 300 battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 1988–2000 | OEM batteryYTX14-BS12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATX12 RE-START →Antigravity ATX12-HD RE-START →Ionic S4 → |
| 2001–2009Your year · 2009 | OEM batteryYTX9-BS12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATZ-10 RE-START →Antigravity ATZ-10-HD RE-START →Ionic S4 → |
2 trims covered: Sportrax 300 TRX300EX, Sportrax 300 TRX300X.
Shop all Honda ATV batteriesWhy the year matters on this one
The Sportrax 300 is an ATV where the battery changed mid-run: 1988 to 2000 takes the YTX14-BS and 2001 to 2009 the YTX9-BS. The plate above names the source for each year, and the table shows every run we have on file, so match the year to the case before you order.
For 2001 to 2009 that means the Antigravity ATZ-10 RE-START: 360 cranking amps, 2.6 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.