Can I install a higher capacity battery in my Piaggio FLY Fly 125?

Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Piaggio FLY Fly 125 battery compartment and the positive terminal position matches.

What type of battery does my motorcycle need?

Motorcycles can use GEL, AGM, or conventional batteries. GEL batteries are ideal for occasional use. AGM batteries are the best option for heavy use or high-power motorcycles. Always check the polarity before installation.

How do I know the polarity of my motorcycle battery?

Polarity indicates which side has the positive (+) terminal. This is critical for motorcycles because some models have the positive terminal on the left and others on the right. Check the label on your current battery or the manufacturer's manual.

Can I install my motorcycle battery myself?

Yes. First disconnect the negative (−) wire and then the positive (+) wire. When installing the new one, connect the positive (+) wire first and then the negative (−) wire. Always respect the correct polarity.

How do I find the right battery for my vehicle?

Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.

What warranty do the batteries have?

All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.

How long does it take for the battery to arrive?

Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.

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Piaggio FLY Fly 125

Batteries for Piaggio FLY Fly 125 10 hp (petrol, from 2014)

Piaggio · FLY

Which battery does a Piaggio FLY Fly 125 need?

Specifications and battery: Fly 125 (10 hp)

Piaggio FLY Fly 125 (10 hp, petrol, from 2014): depending on the equipment, it takes a conventional 9 Ah, 85 A battery (136 × 76 × 139 mm) or a 12 Ah, 215 A AGM battery (151 × 70 × 131 mm). Measure your current battery before choosing. In every case the positive terminal is on the left.

Brand: Piaggio
Model: FLY
Built: 2014 - 2026
Fuel: Petrol
Cylinders: 1
Drive: Vario

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Depending on equipment 1	Conventional	9 Ah	85 A	136 × 76 × 139 mm	+ on the left
Depending on equipment 2	AGM	12 Ah	215 A	151 × 70 × 131 mm	+ on the left

Data: vehicle specifications and the battery manufacturer's application catalogue.

🔧 Battery Expert Advisor

Battery analysis for your Piaggio FLY Fly 125

Quick answer Depending on the equipment, your motorbike uses one of these two main batteries: ordinary lead-acid 9 Ah (136×76×139 mm), for which we recommend VARTA 12N9-4B-1, or AGM 12 Ah (151×70×131 mm): VARTA YT12B-BS. Before buying, check the Ah on your current battery's label or measure its length.

Batteries in your Piaggio FLY Fly 125

MainDepends on equipmentSee all in the list →

Measure the length of yours: 136 or 151 mm

Our recommendation

VARTA 12N9-4B-1

ordinary lead-acid9 Ah85 A

136 × 76 × 139 mm

€110.60Buy

Alternative

VARTA YT12B-BS

AGM12 Ah215 A

151 × 70 × 131 mm

€67.40Buy

Prices and availability updated on 26/10/2026

Based on the batteries we found for your vehicle, our experts help you pick the right one.

📋 What we found

For your Piaggio FLY Fly 125 we found 7 compatible batteries. This list includes 3 AGM or EFB batteries and 4 conventional batteries.

📏 Battery size

The list contains batteries in different sizes or capacities (Ah). In many cases both variants fit, but it's worth checking your compartment dimensions and the Ah of your original battery before buying. Choose the one with the same dimensions as your current battery: a bigger one may not fit the compartment or the hold-down. If several match your size, the higher capacity gives more headroom for cold starts.

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our recommendation

For your Piaggio FLY Fly 125 we recommend the VARTA 12N9-4B-1 (ordinary lead-acid, 9 Ah). Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.

Get it on Wednesday before 5 PM — your product ships tomorrow.

See this battery →

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Verified selection

Class: Motorcycle Batteries
Brand: Piaggio
Model: FLY
Engine: Fly 125

Order now with express shipping: your product ships tomorrow and arrives on Wednesday before 5 PM (Spain mainland and Portugal only).

Before you buy: check the JIS code on your battery

On motorcycles, the definitive identifier is the JIS (Japanese Industrial Standard) code printed on the original battery — for example YT12B-BS, YTX9-BS or YB12AL-A2. It identifies the model 100%: dimensions, capacity, polarity and terminal type.

Make sure the JIS code of the battery you are buying matches the one on your current battery
How to find the JIS code on your battery: it is printed on the manufacturer's label, usually on the top or front face of the battery, next to the voltage and capacity. It typically starts with Y (Yuasa) followed by letters and numbers: YT, YTX, YTZ, YB, YT-BS, etc. Some brands use parallel equivalents (FT, GT, BT, EB) — all follow the JIS standard. If the code of the battery you are buying matches yours (same letters and numbers before the «-BS» / «-A2»), it is the correct battery. If it differs even by a single digit, the dimensions or capacity do not match and it will NOT fit.

If you have any questions, just ask us and we'll be glad to advise you with no obligation.

AGM / EFB batteries

AGM or EFB technology batteries: more charge cycles, faster recovery and a longer life than a conventional battery.

3 products

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
AGM / EFB batteries	VARTA	512901019	12 Ah	215 A	151×70×131 mm	AGM	€67.40	More info
AGM / EFB batteries	EXIDE	ETX9C-BS	9 Ah	120 A	135×75×140 mm	AGM	€33.80	More info
AGM / EFB batteries	EXIDE	AGM12-9	9 Ah	120 A	135×75×140 mm	AGM	€51.00	More info

Conventional batteries

Standard lead-acid batteries.

4 products

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Conventional batteries	VARTA	509014009	9 Ah	85 A	136×76×139 mm	Conventional	€110.60	More info
Conventional batteries	FULBAT	FB9-B GEL	9.50 Ah	115 A	135×75×139 mm	GEL	€58.04	More info
Conventional batteries	EXIDE	EB9-B	9 Ah	100 A	135×75×140 mm	Conventional	€48.50	More info
Conventional batteries	EXIDE	12N9-4B-1	9 Ah	85 A	135×75×140 mm	Conventional	€47.50	More info

Frequently asked questions

: Piaggio FLY Fly 125 (10 hp, petrol, from 2014): depending on the equipment, it takes a conventional 9 Ah, 85 A battery (136 × 76 × 139 mm) or a 12 Ah, 215 A AGM battery (151 × 70 × 131 mm). Measure your current battery before choosing. In every case the positive terminal is on the left. We found 7 compatible batteries priced between 33,80€ — 110,60€. Check dimensions and positive terminal position before purchasing.
: Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Piaggio FLY Fly 125 battery compartment and the positive terminal position matches.
: Motorcycles can use GEL, AGM, or conventional batteries. GEL batteries are ideal for occasional use. AGM batteries are the best option for heavy use or high-power motorcycles. Always check the polarity before installation.
: Polarity indicates which side has the positive (+) terminal. This is critical for motorcycles because some models have the positive terminal on the left and others on the right. Check the label on your current battery or the manufacturer's manual.
: Yes. First disconnect the negative (−) wire and then the positive (+) wire. When installing the new one, connect the positive (+) wire first and then the negative (−) wire. Always respect the correct polarity.
: Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.
: All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.
: Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.

Guides

Batteries for Piaggio FLY Fly 125 10 hp (petrol, from 2014)

Which battery does a Piaggio FLY Fly 125 need?