Can-Am Defender HD10 Battery

2016–2026. The OEM battery case the Defender HD10 takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.

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2026 Can-Am Defender HD10

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OEM battery: YTX20LYuasa 2026 OEM guide
Case family: YTX20L12V starter case
Fits all years: 2016–2026same case every year on file

The Can-Am Defender HD10 takes the YTX20L case. The Antigravity ATX20 RE-START is a drop-in for that case: 680 cranking amps, 4 lb, a built-in jump start that saves enough charge to get you home. Some trims of this model take a different battery; check the code on yours.

See the Antigravity ATX20

Fits your machine

680CA

Starter

Antigravity

Antigravity ATX20 12V UTV Battery 680CA (w/ Re-Start)

3-yr warranty · Free Shipping

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Ionic Lithium S6 12V ATV Starter Battery (720CA)

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Defender HD10 battery by model year

Model years	OEM battery	Where it comes from	Lithium that fits
2016–2026Your year · 2026	OEM batteryYTX20L12V starter case	Where it comes fromYuasa 2026 OEM guide	Lithium that fitsAntigravity ATX20 RE-START →Antigravity ATX20-HD →Ionic S6 →Some trims of this model take a different battery; check the code on yours.

45 trims covered: Defender HD10, Defender HD10 6x6 DPS, Defender HD10 6x6 LTD, Defender HD10 6x6 XT, Defender HD10 DPS, Defender HD10 DPS 6x6, Defender HD10 DPS Cab, Defender HD10 LTD, Defender HD10 Limited, Defender HD10 Limited 6x6 and 35 more.

Shop all Can-Am UTV batteries

What the Defender HD10 needs, in plain English

Every Defender HD10 from the first 2016 model through 2026 starts on the YTX20L case, a 12-volt starter battery. Can-Am 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 ATX20 RE-START: 680 cranking amps, 4 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. Some trims of this model take a different battery; check the code on yours. 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 Can-Am Defender HD10 take?+

The YTX20L case, the same one on every Defender HD10 from 2016 to 2026. The Antigravity ATX20 RE-START is the lithium drop-in for it. Some trims of this model take a different battery; check the code on yours.

Will a lithium battery work in a Defender HD10 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 UTV batteries include, and match the terminal layout of the battery you are replacing.

Do I need a different charger for a lithium UTV 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.