Varta YT7B-BS · Motorcycle battery (507901012) 12V 7Ah 120A AGM
Specifications
| Brand | VARTA |
|---|---|
| Part number | 507901012 |
| Voltage (V) | 12 |
| Capacity (C20) | 7 |
| Capacity (C10) | 7Ah (c10) |
| Cold cranking amps (EN) | 120A |
| Technology | AGM |
| Length | 150.00 mm |
| Width | 66.00 mm |
Varta YT7B-BS 12V 7Ah 120A is a motorcycle starter battery with standard JIS code (the one on your bike's original label). Ready to use, sealed and vibration-resistant. Fits any model that takes the same JIS reference — the code your mechanic recognises at a glance.
Why this motorcycle battery?
- Same JIS referenceas your bike's original — fits first time
- Sealed and ready to useno acid handling, no refills
- Survives winter storageholds charge through long off-season

Varta YT7B-BS Powersports AGM 7Ah 120A 12V Motorcycle Battery
The Varta YT7B-BS motorcycle battery (reference 507901012) is the 12 V, 7 Ah model with 120 A of cold cranking power (EN) from Varta's Powersports AGM range, designed for motorcycles, scooters, quads and personal watercraft. It replaces the original battery in motorcycles with the 150 × 66 × 94 mm format without any modifications: the same 7 Ah capacity and the same terminal layout (positive on the left).
- Construction built to withstand the vibration typical of two-wheelers.
- Direct replacement for the original motorbike, scooter or quad battery.
- High cranking peak in a compact, lightweight format.
- Performs well in the cold and after periods of inactivity.
Vehicles that take the Varta YT7B-BS battery
The Varta YT7B-BS fits more than 19 vehicles: it is fitted as standard or used as a replacement by makes such as Ducati, Yamaha, Triumph Motorcycles, MBK, Suzuki and Beta. For anyone needing to change the battery in their Ducati or Yamaha, this Varta YT7B-BS reproduces the original specifications. The compatibility list also includes models from Kymco and Bombardier. Not sure whether it is the right one for your bike? Check in seconds by entering your registration in our finder.
Format and fitting of the Varta YT7B-BS
Its external dimensions are 150 × 66 × 94 mm and it weighs 2,8 kg. The positive terminal on the left determines which side the cables end up on: it is the detail behind most mistaken purchases, so it is worth checking before ordering. Before replacing it, measure the space your current battery sits in: if it matches on all three dimensions and on the terminal layout, the swap is direct and needs no adapters.
The Varta YT7B-BS and the Powersports AGM range
The Powersports AGM range consists of sealed AGM motorcycle batteries, maintenance-free and ready to use, with immobilised electrolyte that makes them resistant to vibration and suitable for any mounting position.
They are the choice for modern motorcycles and scooters with on-board electronics, where the aim is zero maintenance and reliable starting with no leaks and no topping up with acid.
Unlike a car battery, what matters here is power density in a minimal size and resistance to vibration. It is the direct substitute for the original motorcycle battery, with the advantage of reliable starting even in the cold and after periods of inactivity.
Why choose a Varta battery
Varta is a byword for reliability: original equipment on numerous European vehicles and one of the most proven brands on the market. Replacing your battery with a Varta restores OEM quality — the same performance as the factory-fitted unit — with the manufacturer's backing.
Varta batteries are made under the Clarios group with German technology and quality controls that make them one of the best-selling choices in Europe. As a lead battery, it is 100% recyclable through any collection point.
Varta is Europe's leading manufacturer of starter batteries: its production volume and its quality controls guarantee consistent reliability batch after batch, something own-brand makes cannot always promise.
Manufacturer's warranty
The Varta YT7B-BS battery comes with the official manufacturer warranty.
Care and maintenance
If the bike goes unused for long spells, a trickle charger greatly extends the battery's life and prevents sulphation. Storing it somewhere dry and checking the terminals at the start of each season helps it start first time. Motorcycle batteries suffer in the cold and when left idle: in winter, a maintenance charger stops the battery from discharging completely. With this care, it will typically deliver well over several years of service.
Technical sheet
Download the official technical sheet for this battery with all the manufacturer data.
Data sheet
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BrandVARTA
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Reference507901012
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ModelVarta Powersports AGM
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Voltage (V)12
-
Length150.00 mm
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Width66.00 mm
-
Height94.00 mm
-
Weight2.8 Kgs
-
TechnologyAGM
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EAN4016987169049
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Terminal layoutPositive terminal on the left
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Terminal typeY11
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JISYT7B-4 YT7B-BS
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Cold cranking amps (EN)120A
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Capacity (C20)7
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Capacity (C10)7Ah (c10)
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ETN507901012A514
Specific References
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EAN134016987169049
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MPN507901012
No reviews with that rating
Reviews originally written in Spanish
La batería se descargago por que me deje el contacto puesto y no admite carga
Reply from baterias.com
Buenos días Manuel,
Si la batería se ha descargado mucho debe de ponerla en carga lenta durante un tiempo prolongado (en algunas ocasiones incluso de días). Una descarga prolongada de la batería puede afectar a su funcionamiento por lo que le recomendamos poner su batería en carga cuanto antes.
Esperamos haberle servido de ayuda
Reciba un cordial saludo,
baterias.com
Codes and references Varta 507901012
| Brand | Varta · see all Varta batteries |
|---|---|
| Manufacturer range | Powersports AGM |
| Manufacturer part number (MPN) | 507901012 |
| Also known as | Varta Powersports AGM 507901012 |
| JIS equivalents | YT7B-4 · YT7B-BS |
| ETN code | 507901012A514 (short form 507 901 012) |
| EAN-13 barcode | 4016987169049 |
| Dimensions (length × width × height) | 150 × 66 × 94 mm (150x66x94) |
Comparison: Varta 507901012 vs equivalents
The Varta 507901012 is interchangeable with these equivalent references: ET7B-BS (Exide).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 7Ah 120A | AGM | €39.20 |
|
|
12V 7Ah 85A | AGM | €26.10 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Compatible vehicles
The Varta 507901012 fits 31 vehicles. Most searched below:
Frequently asked questions
Is this battery AGM? What is it for?
Yes. The YT7B-BS from Varta uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for motorcycles with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How do I fit the YT7B-BS model in my motorcycle?
In most motorcycles it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — with positive on the left match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On motorcycles with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Varta YT7B-BS battery last?
Expected lifespan of the Varta YT7B-BS is 5 to 8 years in mild-climate motorcycle use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the dimensions of the Varta YT7B-BS battery?
Dimensions (length × width × height) are 150×66×94 mm — also written as 150x66x94 mm — following the European DIN standard. Always measure the space in your motorcycle before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Which side is the positive terminal on this battery?
Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.
Will the Varta YT7B-BS battery fit my motorcycle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The YT7B-BS fits 31 verified vehicle versions in our database.
What are the equivalents of the YT7B-BS model?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop motorcycles. See the "Equivalents" section to view recommended options at the same performance level.
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