KYMCO Mongoose 50 Battery
2004–2009. KYMCO changed the Mongoose 50's battery twice 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 KYMCO Mongoose 50
- OEM battery
- ATZ7Manufacturer fitment list
- Case family
- YTZ712V starter case
- Fits all years
- 2004–2009same case every year on file
The KYMCO Mongoose 50 takes the ATZ7 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
Mongoose 50 battery by model year
| Model years | OEM battery | Where it comes from | Lithium that fits |
|---|---|---|---|
| 2004 | OEM batteryATZ712V starter case | Where it comes fromManufacturer fitment list | Lithium that fitsAntigravity ATZ-7 RE-START → |
| 2005–2007 | OEM batteryYTX5L-BS12V starter case | Where it comes fromYuasa 2026 OEM guideAntigravity fitment list agrees | Lithium that fitsAntigravity ATZ-7 RE-START → |
| 2008–2009Your year · 2009 | OEM batteryATZ712V starter case | Where it comes fromManufacturer fitment list | Lithium that fitsAntigravity ATZ-7 RE-START → |
Trim covered: Mongoose 50.
Shop all KYMCO ATV batteriesWhy the year matters on this one
The Mongoose 50 is an ATV where the battery changed mid-run: 2004 takes the ATZ7, 2005 to 2007 the YTX5L-BS and 2008 to 2009 the ATZ7. 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 2008 to 2009 that means 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.