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BMW R1150GS Adventure Battery

2000–2005. The OEM battery case the R1150GS Adventure 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 BMW R1150GS Adventure

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OEM battery
YT19BL-BSYuasa 2026 OEM guide
Case family
YT19BL12V starter case
Fits all years
2000–2005same case every year on file

The BMW R1150GS Adventure takes the YT19BL-BS case. The Antigravity AT12BS 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.

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R1150GS Adventure battery by model year

2000–2005Your year · 2005OEM batteryYT19BL-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity AT12BS RE-START →Antigravity AT12BS-HD RE-START →

Trim covered: R1150GS Adventure.

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What the R1150GS Adventure needs, in plain English

Every R1150GS Adventure from the first 2000 model through 2005 starts on the YT19BL-BS case, a 12-volt starter battery. BMW 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 AT12BS 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 BMW R1150GS Adventure take?+
The YT19BL-BS case, the same one on every R1150GS Adventure from 2000 to 2005. The Antigravity AT12BS RE-START is the lithium drop-in for it.
Will a lithium battery work in an R1150GS Adventure 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.