Triumph Rocket GT Battery
2020–2025. The OEM battery case the Rocket GT takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.
2021 Triumph Rocket GT
- OEM battery
- YTX12-24Manufacturer fitment list
- Case family
- YTX12-2412V starter case
- This battery fits
- 2020–2021other years take a different case
The Triumph Rocket GT takes the YTX12-24 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. Antigravity's list names the YTX12-24 for this model; Yuasa's guide names the YTX20CH-BS case for some trims. Go by the code on your old battery.
See the Antigravity ATX12Rocket GT battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 2020–2021Your year · 2021 | OEM batteryYTX12-2412V starter case | Where it comes fromManufacturer fitment list | Lithium that fitsAntigravity ATX12 RE-START →Antigravity ATX12-HD RE-START →Ionic S4 →Antigravity's list names the YTX12-24 for this model; Yuasa's guide names the YTX20CH-BS case for some trims. Go by the code on your old battery. |
| 2022–2025 | OEM batteryOn file12V starter case | Where it comes fromManufacturer fitment list | Lithium that fitsNot stocked yet (needs an Antigravity YTX12-24 race lithium). Call us and we will point you at the right battery. |
Trim covered: Rocket 3 GT.
Shop all Triumph batteriesWhat the Rocket GT needs, in plain English
Every Rocket GT from the first 2020 model through 2025 starts on the YTX12-24 case, a 12-volt starter battery. Triumph 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. Antigravity's list names the YTX12-24 for this model; Yuasa's guide names the YTX20CH-BS case for some trims. Go by the code on your old battery. Charge it with a lithium-compatible charger or maintainer for the off-season and it outlasts the lead-acid battery it replaces by years.


