Varta YT12A · Motorcycle battery 12V 10Ah 145A AGM

Varta YT12A Powersports AGM Active (formerly Powersports AGM High Performance) 10Ah 145A 12V Motorcycle Battery

The Varta YT12A motorcycle battery (reference 510909015) is the 12 V, 10 Ah model delivering 145 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 × 88 × 105 mm format without any modifications: the same 10 Ah capacity and the same terminal layout (positive on the left).

• 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 YT12A battery

The Varta YT12A covers the needs of motorcycles, scooters, quads and personal watercraft with 10 Ah of capacity and a construction built for that use. 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 YT12A

The Varta YT12A is made in the 150 × 88 × 105 mm format. 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. Checking the three dimensions and the terminal layout before buying avoids the most common mistake when replacing a battery.

The Varta YT12A and the Powersports AGM Active range

The Powersports AGM Active series is Varta's AGM motorcycle line that arrives activated and charged from the factory: it fits straight on, with no acid to add and no charging before use. It combines the ruggedness of AGM (resistance to vibration and to deep discharge) with the greatest possible ease of installation.

In the new portfolio it also absorbs the former high-performance versions (AGM High Performance), so it covers everything from general use to large-capacity, custom and trail bikes with heavy cranking demands.

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

Why choose a Varta battery

Manufactured by Clarios to German standards, Varta is one of the world's benchmark brands in starter batteries and an OEM supplier to the leading car makers. Choosing it as a replacement guarantees specifications equal to or better than the originals.

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 YT12A 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.