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Aprilia RSV Mille Battery

1998–2009. The OEM battery case the RSV Mille 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 Aprilia RSV Mille

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OEM battery
YTX12-BSYuasa 2026 OEM guide
Case family
YTX1212V starter case
Fits all years
1998–2009same case every year on file

The Aprilia RSV Mille takes the YTX12-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

RSV Mille battery by model year

1998–2009Your year · 2009OEM batteryYTX12-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATX12 RE-START →Antigravity ATX12-HD RE-START →Ionic S4 →

2 trims covered: RSV Mille, RSV Mille R.

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What the RSV Mille needs, in plain English

Every RSV Mille from the first 1998 model through 2009 starts on the YTX12-BS case, a 12-volt starter battery. Aprilia 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 an Aprilia RSV Mille take?+
The YTX12-BS case, the same one on every RSV Mille from 1998 to 2009. The Antigravity ATX12 RE-START is the lithium drop-in for it.
Will a lithium battery work in an RSV Mille 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.