Varta YTX14-4 · Motorcycle battery (512909020) 12V 12Ah 200A AGM

Varta YTX14-4 Powersports AGM Active (formerly Powersports AGM High Performance) 12Ah 200A 12V Motorcycle Battery

The Varta YTX14-4 motorcycle battery (reference 512909020) is the 12 V, 12 Ah model with 200 A of cold cranking power (EN) from Varta's Powersports AGM Active (formerly Powersports AGM High Performance) range, designed for motorcycles, scooters, quads and personal watercraft. It replaces the original battery in motorcycles with the 150 × 87 × 146 mm format without any modifications: the same 12 Ah capacity and the same terminal layout (positive on the left).

In short: the Varta YTX14-4 (12 Ah, 200 A, 150 × 87 × 146 mm, positive terminal on the left). Verified equivalent alternatives: Exide AGM12-12 and Exide AGM12-12M.

• 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 YTX14-4 battery

According to our database, the Varta YTX14-4 is fitted to more than 130 vehicles from makes such as BMW, Moto Guzzi, Hyosung, Kawasaki, Harley-Davidson and Piaggio, among others. It is a go-to choice when you need a battery for a BMW, a Moto Guzzi or other models that take this same format. It also appears as a replacement in vehicles from Honda, Aprilia Motorcycles, Triumph Motorcycles, Vespa, Suzuki, Yamaha, Husqvarna and Sachs, among other manufacturers. 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 YTX14-4

In terms of format, the Varta YTX14-4 measures 150 × 87 × 146 mm (length × width × height). 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. It uses a B00 hold-down, the system that anchors it to the vehicle's battery tray. For the swap to be direct, the space taken by your current battery must respect those three dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will have to change.

The Varta YTX14-4 and the Powersports AGM Active range

The Powersports AGM Active range consists of AGM motorcycle batteries activated and charged at the factory, ready to fit. They pair the toughness of AGM technology with the convenience of immediate installation.

They are aimed at general motorcycle and scooter use, with reliable starting and no maintenance from day one.

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. This battery used to belong to Varta's Powersports AGM High Performance range; following the brand's change of commercial naming (2025), it forms part of the new Powersports AGM Active series.

Why choose a Varta battery

When a workshop recommends Varta it is not down to marketing: it is one of the brands with the lowest return rates in the sector, with an application coverage spanning practically the whole European fleet, from the small hatchback to the commercial vehicle.

Varta combines more than a century of experience with Clarios's industrial production: it is the battery many manufacturers choose as standard and one of the most recommended by workshops. Like any lead-acid battery, it is 100% recyclable.

Varta's production combines automated lines with verification of more than 100 parameters per unit; that traceability is what underpins its reputation for reliable starting throughout the battery's life.

Manufacturer's warranty

The Varta YTX14-4 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.