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Buell XB12S Lightning Battery

2004–2009. The OEM battery case the XB12S Lightning 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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2009 Buell XB12S Lightning

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OEM battery
ATX12Manufacturer fitment list
Case family
ATX1212V starter case
Fits all years
2004–2009same case every year on file

The Buell XB12S Lightning takes the ATX12 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

XB12S Lightning battery by model year

2004–2009Your year · 2009OEM batteryATX1212V starter caseWhere it comes fromManufacturer fitment listLithium that fitsAntigravity ATX12 RE-START →Antigravity ATX12-HD RE-START →

Trim covered: XB12S Lightning.

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What the XB12S Lightning needs, in plain English

Every XB12S Lightning from the first 2004 model through 2009 starts on the ATX12 case, a 12-volt starter battery. Buell 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 Buell XB12S Lightning take?+
The ATX12 case, the same one on every XB12S Lightning from 2004 to 2009. The Antigravity ATX12 RE-START is the lithium drop-in for it.
Will a lithium battery work in an XB12S Lightning 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.