Varta B36 · Car battery 12V 44Ah 420A

Varta B36 Dynamic SLI (formerly Black Dynamic) 44Ah 420A 12V Car Battery

The Varta B36 car battery is the 12 V, 44 Ah model with 420 A of cold cranking power (EN) from Varta's Dynamic SLI (formerly Black Dynamic) range, intended for cars with conventional starting, without a Start-Stop system. It replaces the original battery with no modifications in cars using the 175 × 175 × 190 mm format: the same 44 Ah capacity and the same terminal layout (positive on the right).

In short: the Varta B36 (44 Ah, 420 A, 175 × 175 × 190 mm, positive terminal on the right) is one of the 50 best-selling batteries at baterias.com over the last 3 months. It is a conventional battery for cars without Start-Stop: if yours has Start-Stop, it needs an EFB or AGM battery of the same size. Verified equivalent alternatives: Tudor TB440 and Exide EB440.

• Maintenance-free lead-acid technology: no topping up with water.
• Long service life with normal use and a charging system in good order.
• Reliable cold starting thanks to its high cranking current.
• Direct replacement for the original battery in cars without Start-Stop.

Vehicles compatible with the Varta B36 battery

This battery is listed as compatible with more than 138 vehicles from manufacturers such as Fiat, Aixam, Citroën, Lancia, Ford and Toyota. It is a go-to option when you need a battery for a Fiat, Aixam or other models that use this same format. It also appears as a replacement in vehicles from Chevrolet, Peugeot, Ligier, Volkswagen, Microcar, Smart, Seat and Skoda, among other manufacturers. In our database it is approved against 54 original equipment references, which gives an idea of how much of the fleet it really covers. Not sure whether it is the one for your car? Check in seconds by entering your registration in our finder.

Format and fitting of the Varta B36

Its external dimensions are 175 × 175 × 190 mm and it weighs 11,5 kg. The positive terminal on the right determines which side the cables end up on: it is the detail that causes the most buying mistakes, so it is worth checking before you order. It uses a B13 hold-down and terminal 1, the system that anchors it to the vehicle's battery tray. Checking the three dimensions and the terminal position before buying avoids the most common error when replacing a battery.

The Varta B36 and the Dynamic SLI range

The Dynamic SLI range is Varta's conventional starter series for cars and vans without a Start-Stop system (identified by the blue label in Varta's new scheme; it replaces the former Blue, Black and Silver Dynamic). It uses lead-calcium technology with PowerFrame grids that reduce self-discharge and extend service life with no maintenance.

It is the balanced option in the catalogue: it covers most of Europe's conventional petrol and diesel fleet, with ample cranking power and an excellent performance-to-price ratio.

This series uses lead-acid technology with plates optimised for a good balance between cranking power and service life. It is the natural successor when your car has no Start-Stop and came with a standard battery from new: the same thinking, without paying over the odds for a chemistry you do not need. This battery used to belong to Varta's Black Dynamic, Silver Dynamic or Black Dynamic range; following the brand's commercial renaming (2025), it forms part of the new Dynamic SLI 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 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.

Varta is Europe's leading maker of starter batteries: its production volume and quality controls guarantee consistent reliability batch after batch, something own-brand makes cannot always promise.

Manufacturer's warranty

The Varta B36 battery comes with the official manufacturer warranty.

Care and maintenance

To get the most out of it, keep the alternator in good order and avoid leaving lights or accessories on with the engine switched off. Repeated very short journeys are its main enemy: they stop the battery from recharging fully and shorten its life. If the car is going to stand unused for weeks, it is worth disconnecting the terminal or using a trickle charger so it does not drop below the safe threshold. Making sure the terminals are clean and properly tightened also helps towards reliable starting.