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KTM 300 XC-W Battery

2006–2027. KTM changed the 300 XC-W'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 bike.

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2027 KTM 300 XC-W

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OEM battery
YTX5L-BSYuasa 2026 OEM guide
Case family
YTX5L12V starter case
This battery fits
2023–2027other years take a different case

The KTM 300 XC-W takes the YTX5L-BS case. The Antigravity ATZ5-X is a drop-in for that case: 170 cranking amps, 1 lb.

See the Antigravity ATZ5-X
Fits your bike
170CA
Antigravity ATZ5-X 12V Dirt Bike Battery 170CAStarter
Antigravity

Antigravity ATZ5-X 12V Dirt Bike Battery 170CA

12V·170CA·1 lb
$120
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3-yr warranty · Ships in 3-5 days

300 XC-W battery by model year

2006–2010OEM batteryYTX5L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideLithium that fitsAntigravity ATZ-7 RE-START →
2011–2013OEM batteryYTX4L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideLithium that fitsAntigravity ATZ-7 RE-START →
2014–2017OEM batteryYTX5L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideLithium that fitsAntigravity ATZ-7 RE-START →
2018OEM batteryYTX5L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATZ5-X →
2023–2027Your year · 2027OEM batteryYTX5L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATZ5-X →

Trim covered: 300 XC-W.

Shop all KTM Dirt Bike batteries

Why the year matters on this one

The 300 XC-W is a dirt bike where the battery changed mid-run: 2006 to 2010 takes the YTX5L-BS, 2011 to 2013 the YTX4L-BS and 2014 to 2027 the YTX5L-BS. 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 2014 to 2027 that means the Antigravity ATZ5-X: 170 cranking amps, 1 pound, 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.

What size battery does a KTM 300 XC-W take?+
It depends on the year: 2006 to 2010 takes the YTX5L-BS, 2011 to 2013 the YTX4L-BS and 2014 to 2027 the YTX5L-BS. For 2014 to 2027 that is the Antigravity ATZ5-X, the lithium drop-in for the YTX5L-BS 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 300 XC-W without changes?+
Yes, on a bike 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. Bikes older than about 2000 should have their voltage regulator and rectifier checked first, since a failing one overcharges any battery and lithium tolerates it less. Fill any gap in the tray with the foam spacers most lithium dirt bike batteries include.
Do I need a different charger for a lithium dirt bike 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.