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Suzuki GSF1250S Bandit Battery

2007–2009. The OEM battery case the GSF1250S Bandit 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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GSF1250S Bandit battery by model year

2007–2009Your year · 2009OEM batteryAT12BS12V starter caseWhere it comes fromManufacturer fitment listLithium that fitsAntigravity ATZ-10 RE-START →Antigravity ATZ-10-HD RE-START →Antigravity AT12BS RE-START →Antigravity AT12BS-HD RE-START →

2 trims covered: GSF1250S Bandit, GSF1250S Bandit ABS.

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What the GSF1250S Bandit needs, in plain English

Every GSF1250S Bandit from the first 2007 model through 2009 starts on the AT12BS case, a 12-volt starter battery. Suzuki 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 ATZ-10 RE-START: 360 cranking amps, 2.6 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 Suzuki GSF1250S Bandit take?+
The AT12BS case, the same one on every GSF1250S Bandit from 2007 to 2009. The Antigravity ATZ-10 RE-START is the lithium drop-in for it.
Will a lithium battery work in a GSF1250S Bandit 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.