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Polaris Sportsman 450 Battery

2006–2026. Polaris changed the Sportsman 450'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.

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2026 Polaris Sportsman 450

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OEM battery
Group U1OEM parts catalog
Case family
Group U112V starter case
This battery fits
2021–2026other years take a different case

The Polaris Sportsman 450 takes the Group U1 case. The Antigravity Group U1 RE-START is a drop-in for that case: 925 cranking amps, 8 lb, a built-in jump start that saves enough charge to get you home. Polaris fits a Group U1 battery (part 4017419, 340 CCA) to this model. U1 and U1R differ only in terminal position; match the layout of the battery you are replacing.

See the Antigravity Group U1

Sportsman 450 battery by model year

2006–2007OEM batteryYTX14AH-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATX12-AH RE-START →
2016–2020OEM batteryYTX14AH-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATX12-AH RE-START →
2021–2026Your year · 2026OEM batteryGroup U112V starter caseWhere it comes fromOEM parts catalogverified against the parts catalogLithium that fitsAntigravity Group U1 RE-START →Antigravity Group U1R RE-START →Polaris fits a Group U1 battery (part 4017419, 340 CCA) to this model. U1 and U1R differ only in terminal position; match the layout of the battery you are replacing.

7 trims covered: Sportsman 450, Sportsman 450 4X4, Sportsman 450 HO, Sportsman 450 HO EPS, Sportsman 450 HO EPS Utility Edition, Sportsman 450 HO Utility, Sportsman 450 HO Utility Edition.

Shop all Polaris ATV batteries

Why the year matters on this one

The Sportsman 450 is an ATV where the battery changed mid-run: 2006 to 2020 takes the YTX14AH-BS and 2021 to 2026 the Group U1. 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 2021 to 2026 that means the Antigravity Group U1 RE-START: 925 cranking amps, 8 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. Polaris fits a Group U1 battery (part 4017419, 340 CCA) to this model. U1 and U1R differ only in terminal position; match the layout of the battery you are replacing. Charge it with a lithium-compatible charger or maintainer for the off-season and it outlasts the lead-acid battery it replaces by years.

What size battery does a Polaris Sportsman 450 take?+
It depends on the year: 2006 to 2020 takes the YTX14AH-BS and 2021 to 2026 the Group U1. For 2021 to 2026 that is the Antigravity Group U1 RE-START, the lithium drop-in for the Group U1 case. The table above shows every run we have on file, so match your year to the case before you order.
Will a lithium battery work in a Sportsman 450 without changes?+
Yes, on a machine with a healthy charging system: the lithium battery uses the same case, the same posts and the same cables, and it drops in where the lead-acid battery sat. Check that the stator and regulator hold a steady charge, fill any gap in the tray with the foam spacers most lithium ATV batteries include, and match the terminal layout of the battery you are replacing.
Do I need a different charger for a lithium ATV battery?+
Use a charger or maintainer with a lithium (LiFePO4) mode. A lead-acid trickle charger can push the wrong voltage profile, and a desulfation mode can damage a lithium pack. A lithium-profile maintainer over the off-season keeps it topped without harm, and the battery loses only a few percent of charge a month sitting on its own.