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Piaggio Fly 150 Battery

2009–2019. Piaggio changed the Fly 150's battery once across the run. Pick your year and we show the case that year takes and the lithium that fits it. Change any box in the strip to look up another bike.

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Year
Make
Model
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Your ride

2019 Piaggio Fly 150

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OEM battery
YTX7L-BSYuasa 2026 OEM guide
Case family
YTZ712V starter case
This battery fits
2014–2019other years take a different case

The Piaggio Fly 150 takes the YTX7L-BS case. The Antigravity ATZ-7 RE-START is a drop-in for that case: 150 cranking amps, 1.3 lb, a built-in jump start that saves enough charge to get you home.

See the Antigravity ATZ-7
Fits your bike
150CA
Antigravity ATZ-7 12V Motorcycle Battery 150CA (w/ Re-Start)StarterYTZ7
Antigravity

Antigravity ATZ-7 12V Motorcycle Battery 150CA (w/ Re-Start)

12V·150CA·1.3 lb
RE-START
$145
$230Save $85
3-yr warranty · Ships in 3-5 days

Fly 150 battery by model year

2009–2013OEM batteryYB9-B12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATX12-AH RE-START →
2014–2019Your year · 2019OEM batteryYTX7L-BS12V starter caseWhere it comes fromYuasa 2026 OEM guideAntigravity fitment list agreesLithium that fitsAntigravity ATZ-7 RE-START →

Trim covered: Fly 150.

Shop all Piaggio batteries

Why the year matters on this one

The Fly 150 is a motorcycle where the battery changed mid-run: 2009 to 2013 takes the YB9-B and 2014 to 2019 the YTX7L-BS. The plate above names the source for each year, and the table shows every run we have on file, so match the year to the case before you order.

For 2014 to 2019 that means the Antigravity ATZ-7 RE-START: 150 cranking amps, 1.3 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 Piaggio Fly 150 take?+
It depends on the year: 2009 to 2013 takes the YB9-B and 2014 to 2019 the YTX7L-BS. For 2014 to 2019 that is the Antigravity ATZ-7 RE-START, the lithium drop-in for the YTX7L-BS case. The table above shows every run we have on file, so match your year to the case before you order.
Will a lithium battery work in a Fly 150 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.