KTM 620 LC4-Duke Battery
1996–1997. The OEM battery case the 620 LC4-Duke takes and the lithium that drops into it, year by year. One case across the whole run.
1997 KTM 620 LC4-Duke
- OEM battery
- YTX9-BSYuasa 2026 OEM guide
- Case family
- YTX912V starter case
- Fits all years
- 1996–1997same case every year
The KTM 620 LC4-Duke takes the YTX9-BS case. The Ionic S4 is a drop-in for that case: 500 cranking amps, 3.3 lb.
See the Ionic S4
StarterYTZ10Antigravity ATZ-10 12V Motorcycle Battery 360CA (w/ Re-Start)
StarterYTZ10Antigravity ATZ-10-HD 12V Motorcycle Battery 525CA (w/ Re-Start)
620 LC4-Duke battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 1996–1997Your year · 1997 | OEM batteryYTX9-BS12V starter case | Where it comes fromYuasa 2026 OEM guide | Lithium that fitsIonic S4 Antigravity ATZ-10 RE-START Antigravity ATZ-10-HD RE-START |
Trim covered: 620 LC4-Duke.
Shop all KTM batteriesWhat the 620 LC4-Duke needs
Every 620 LC4-Duke from the first 1996 model through 1997 starts on the YTX9-BS case, a 12-volt starter battery. KTM 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 Ionic S4: 500 cranking amps, 3.3 pounds, the same case in lithium. Charge it with a lithium-compatible charger or maintainer for the off-season and it outlasts the lead-acid battery it replaces by years.