Varta YT12B-BS · Motorcycle battery (512901019) 12V 12Ah 215A AGM

Varta YT12B-BS Powersports AGM 12Ah 215A 12V Motorcycle Battery

The Varta YT12B-BS motorcycle battery (reference 512901019) is the 12 V, 12 Ah model with 215 A of cold cranking power (EN) from Varta's Powersports AGM range, designed for motorcycles, scooters, quads and personal watercraft. Its 151 × 70 × 131 mm dimensions and positive terminal on the left make it the exact replacement for the 12 Ah battery fitted as standard in many motorcycles.

• 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 YT12B-BS battery

The Varta YT12B-BS fits more than 47 vehicles: it is fitted as standard or used as a replacement by makes such as Ducati, Yamaha, Bimota, Kawasaki, Aprilia Motorcycles and Vespa. For anyone needing to change the battery in their Ducati or Yamaha, this Varta YT12B-BS reproduces the original specifications. The compatibility list also includes models from Piaggio and Triumph Motorcycles. 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 YT12B-BS

The Varta YT12B-BS is made in the 151 × 70 × 131 mm format and weighs 4,3 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. Checking the three dimensions and the terminal layout before buying avoids the most common mistake when replacing a battery.

The Varta YT12B-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.

Behind Varta is Clarios, one of the largest manufacturers of starter batteries in the world and a supplier to the assembly lines of numerous car brands. That German engineering heritage translates into reliable starting year after year.

More than 100 manufacturing parameters are checked on every Varta battery before it leaves the plant, a level of rigour that explains why so many workshops and manufacturers trust the brand as their first-choice replacement.

Manufacturer's warranty

The Varta YT12B-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.