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Kawasaki Ninja ZX-12R Battery

2000–2005. The OEM battery case the Ninja ZX-12R 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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2005 Kawasaki Ninja ZX-12R

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OEM battery
YTX14-BSYuasa 2026 OEM guide
Case family
YTX1412V starter case
Fits all years
2000–2005same case every year on file

The Kawasaki Ninja ZX-12R takes the YTX14-BS case. The Antigravity ATX12 RE-START is a drop-in for that case: 360 cranking amps, 3 lb, a built-in jump start that saves enough charge to get you home.

See the Antigravity ATX12

Ninja ZX-12R battery by model year

2000–2005Your year · 2005OEM batteryYTX14-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATX12 RE-START →Antigravity ATX12-HD RE-START →Ionic S4 →

Trim covered: Ninja ZX-12R.

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What the Ninja ZX-12R needs, in plain English

Every Ninja ZX-12R from the first 2000 model through 2005 starts on the YTX14-BS case, a 12-volt starter battery. Kawasaki 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 ATX12 RE-START: 360 cranking amps, 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.

What size battery does a Kawasaki Ninja ZX-12R take?+
The YTX14-BS case, the same one on every Ninja ZX-12R from 2000 to 2005. The Antigravity ATX12 RE-START is the lithium drop-in for it.
Will a lithium battery work in a Ninja ZX-12R 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 motorcycle batteries include.
Do I need a different charger for a lithium motorcycle 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.