Varta YTX20HL-BS Powersports AGM · Battery 18Ah 320A

Varta YTX20HL-BS Powersports AGM Active (formerly Powersports AGM High Performance) 18Ah 320A 12V Motorcycle Battery

The Varta YTX20HL-BS motorcycle battery (reference 518918032) is the 12 V, 18 Ah and 320 A cold cranking (EN) model from Varta's Powersports AGM Active (formerly Powersports AGM High Performance) range, designed for motorcycles, scooters, quads and personal watercraft. Measuring 175 × 87 × 154 mm and with the positive terminal on the right, it is the direct replacement for motorcycles fitted from the factory with an 18 Ah battery in this format.

In short: the Varta YTX20HL-BS (18 Ah, 320 A, 175 × 87 × 154 mm, positive terminal on the right). Verified equivalent alternatives: Varta YTX20L-4 and Varta YTX20L-BS.

• 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 compatible with the Varta YTX20HL-BS battery

This battery is listed as compatible with more than 98 vehicles from manufacturers such as Harley-Davidson, Moto Guzzi, Moto-Morini, Indian, Honda and Triumph Motorcycles. It is a benchmark option when you need a battery for Harley-Davidson, Moto Guzzi or other models that use this same format. It also appears as a replacement in vehicles from Yamaha, Kawasaki, Hercules, Buell and Victory Motorcycles, among other manufacturers. Not sure whether it is the right one for your motorbike? Check in seconds by entering your registration number in our finder.

Format and fitting of the Varta YTX20HL-BS

Its external dimensions are 175 × 87 × 154 mm. The positive terminal on the right determines which side the cables end up on: it is the detail that causes the most purchasing 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 YTX20HL-BS 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 unite the toughness of AGM technology with the convenience of immediate installation.

They are aimed at general use on motorbikes and scooters, 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 commercial renaming (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 that spans practically the whole European fleet, from the city car 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 every lead-acid battery, it is 100% recyclable.

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 YTX20HL-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.