Free Shipping $199+
LithiumBatteryz

Suzuki Boulevard C109RT Battery

2008–2009. The OEM battery case the Boulevard C109RT takes, the lithium that drops into it, and every model year we have on file. One case across the whole run.

Your Ride
Year
Make
Model
Change any box to look up another bike.
Your ride

2009 Suzuki Boulevard C109RT

Not yours?
OEM battery
YTX12-BSYuasa 2026 OEM guide
Case family
YTX1212V starter case
Fits all years
2008–2009same case every year on file

The Suzuki Boulevard C109RT takes the YTX12-BS case. The Antigravity ATX12-HD RE-START is a drop-in for that case: 480 cranking amps, 3 lb, a built-in jump start that saves enough charge to get you home.

See the Antigravity ATX12-HD

Boulevard C109RT battery by model year

2008–2009Your year · 2009OEM batteryYTX12-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATX12-HD RE-START →Ionic S4 →

Trim covered: Boulevard C109RT VLR1800T.

Shop all Suzuki batteries

What the Boulevard C109RT needs, in plain English

Every Boulevard C109RT from the first 2008 model through 2009 starts on the YTX12-BS 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 ATX12-HD RE-START: 480 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 Suzuki Boulevard C109RT take?+
The YTX12-BS case, the same one on every Boulevard C109RT from 2008 to 2009. The Antigravity ATX12-HD RE-START is the lithium drop-in for it.
Will a lithium battery work in a Boulevard C109RT 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.