Varta YB12AL · Motorcycle battery 12V 12Ah 125A AGM

Varta YB12AL Powersports AGM Active (formerly Powersports AGM High Performance) 12Ah 125A 12V Motorcycle Battery

The Varta YB12AL motorcycle battery (reference 512909013) is the 12 V, 12 Ah model delivering 125 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. Its 134 × 81 × 160 mm dimensions and positive terminal on the right 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 YB12AL battery

Designed for motorcycles, scooters, quads and personal watercraft, the Varta YB12AL 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 YB12AL

In terms of format, the Varta YB12AL measures 134 × 81 × 160 mm (length × width × height). The positive terminal on the right 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. Before replacing it, measure the space your current battery occupies: if it matches on all three dimensions and on terminal position, the swap is direct and needs no adapters.

The Varta YB12AL 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

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.

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 YB12AL 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.