Varta YT14B-BS · Motorcycle battery 12V 12Ah 190A AGM
Specifications
| Brand | VARTA |
|---|---|
| Part number | 512903019 |
| Voltage (V) | 12 |
| Capacity (C20) | 12Ah (c20) |
| Cold cranking amps (EN) | 190A |
| Technology | AGM |
| Length | 152 mm |
| Width | 70 mm |
| Height | 145 mm |
Varta YT14B-BS 12V 12Ah 190A is a sealed motorcycle battery ready to fit, with the JIS reference your mechanic recognises at a glance. Vibration-resistant, keeps voltage during the winter off-season and cranks first time when you take it out for a ride.
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 YT14B-BS Powersports AGM 12Ah 190A 12V Motorcycle Battery
The Varta YT14B-BS motorcycle battery (reference 512903019) is the 12 V, 12 Ah model delivering 190 A of cold cranking power (EN), from Varta's Powersports AGM range, designed for motorcycles, scooters, quads and personal watercraft. Its 152 × 70 × 145 mm dimensions and positive terminal on the left make it the exact replacement for the 12 Ah battery fitted as standard in many motorcycles.
- Performs well in the cold and after periods of inactivity.
- High cranking peak in a compact, lightweight format.
- Direct replacement for the original motorbike, scooter or quad battery.
- Construction built to withstand the vibration typical of two-wheelers.
Applications of the Varta YT14B-BS battery
Designed for motorcycles, scooters, quads and personal watercraft, the Varta YT14B-BS is a direct replacement when you need its same 12 Ah capacity and format. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a B00 hold-down.
Format and fitting of the Varta YT14B-BS
In terms of format, the Varta YT14B-BS measures 152 × 70 × 145 mm (length × width × height). The positive terminal on the left determines which side the cables run to: it is the detail that causes the most buying mistakes, so it is worth checking before ordering. It uses a B00 hold-down, the system that secures it to the vehicle's battery tray. Checking the three dimensions and the terminal positions before buying avoids the most common mistake when replacing a battery.
The Varta YT14B-BS and the Powersports AGM range
Varta's Powersports AGM series uses AGM technology (electrolyte absorbed in glass fibre): sealed, maintenance-free motorcycle batteries with very high vibration resistance that can be fitted in almost any position with no risk of spillage.
They are designed for today's motorcycles and scooters with plenty of electrical equipment, which demand reliable starting and zero maintenance throughout the battery's life.
On two wheels, vibration and extreme temperatures take a heavy toll on the battery. This range reinforces the internal plate mounting and seals the unit to withstand that use, delivering the instant burst of cranking power a motorbike or quad engine needs after weeks standing idle.
Why choose a Varta battery
A good share of the vehicles on Europe's roads left the factory with a Varta fitted: the brand has been supplying the assembly lines of the leading car groups for decades. Replacing with a Varta is, in practice, giving the vehicle back the battery its manufacturer intended.
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 quality controls guarantee consistent reliability batch after batch, something own-brand labels cannot always promise.
Manufacturer's warranty
The Varta YT14B-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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Reference512903019
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ModelVarta Powersports AGM
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Voltage (V)12
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Length152 mm
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Width70 mm
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Height145 mm
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TechnologyAGM
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EAN4016987169377
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Terminal layoutPositive terminal on the left
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JISYT14B-BS
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Hold-downB00
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Cold cranking amps (EN)190A
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Capacity (C20)12Ah (c20)
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Additional ETN512903019K544
Specific References
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EAN134016987169377
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MPN512903019
Codes and references Varta 512903019
| Brand | Varta · see all Varta batteries |
|---|---|
| Manufacturer part number (MPN) | 512903019 |
| JIS equivalents | T14B-4 · YT14B-4 · T14B-BS · YT14B-BS |
| EAN-13 barcode | 4016987169377 |
| Dimensions (length × width × height) | 152 × 70 × 145 mm (152x70x145) |
Recommended accessories
Frequently asked questions
How do I fit the YT14B-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 — 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.
What is the service life of the YT14B-BS model?
Expected lifespan of the Varta YT14B-BS is 4 to 7 years in regular use (depends on technology and climate). 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 measurements of the YT14B-BS model?
Dimensions (length × width × height) are 152×70×145 mm — also written as 152x70x145 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.
Will the Varta YT14B-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 YT14B-BS typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the YT14B-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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