Varta I18 · Truck battery 12V 110Ah 680A

Varta I18 ProMotive SLI (formerly ProMotive HD) 110Ah 680A 12V Lorry Battery

The Varta I18 lorry battery is the 12 V, 110 Ah model delivering 680 A of cold cranking power (EN), from Varta's ProMotive SLI (formerly ProMotive HD) range, designed for lorries, buses, large vans and machinery. It replaces the original battery in lorries with the 347 × 173 × 234 mm format without any modifications: the same 110 Ah capacity and the same terminal layout (positive on the right).

• Reinforced grids and casing for the severe demands of haulage.
• Dependable through repeated starts and while powering cab equipment.
• High cranking current for large-capacity diesel engines.
• Withstands the vibration of thousands of kilometres on the road.

Vehicles compatible with the Varta I18 battery

According to our database, the Varta I18 is fitted to more than 361 vehicles from makes such as Fendt, Massey Ferguson, Renault, JCB, John Deere and Fiat, among others. If you are looking for a battery for a Fendt or a Massey Ferguson with these dimensions, the I18 is one of the usual replacement references. The compatibility list also includes models from Volvo, Bührer, Case, Timberjack, Ford, Holman, Ingersoll and Viking.

Format and fitting of the Varta I18

Its external dimensions are 347 × 173 × 234 mm and it weighs 28.58 kg. The positive terminal on the right determines which side the cables end up on: this is the detail behind more wrong purchases than any other, so it is worth checking before you order. It takes a B01 hold-down and terminal 1, the system that anchors it to the vehicle's battery tray. For the swap to be direct, the space left by the current battery must respect those three dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down would have to change.

The Varta I18 and the ProMotive SLI range

The ProMotive SLI series is Varta's starter line for professional transport, bringing the former ProMotive HD and SHD together under a single name. It is built to crank large-capacity diesel engines and to take the daily punishment of the lorry, the bus and site machinery.

The key to this range is sheer toughness: reinforced plates and mountings that resist thousands of kilometres of vibration and deep discharge cycles, keeping fleet downtime from starting failures to a minimum.

Compared with a car battery, this range is calibrated for severe, continuous use: greater mechanical strength and more tolerance of cycling and of the knocks of the road. It is the correct replacement for a lorry, bus or machine working long shifts. This battery used to belong to Varta's ProMotive HD or ProMotive SHD range; following the brand's commercial renaming (2025), it now forms part of the new ProMotive SLI series.

Why choose a Varta battery

Varta is an original equipment (OEM) supplier to a good share of Europe's car manufacturers: many cars leave the factory with a Varta fitted. Buying a replacement means, in most cases, refitting the original battery with the same quality and the brand's official warranty.

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.

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 I18 battery comes with the official manufacturer warranty. An important warning for commercial vehicles: most lorries run two batteries connected in series (a 24 V installation). If you replace only one, the new battery ends up working alongside the old one — which has already lost capacity and has higher internal resistance — and that imbalance means one overcharges while the other falls short, shortens the life of the new unit and may be treated by the manufacturer as improper use, voiding the warranty. That is why it is always advisable to change both batteries at the same time.

Care and maintenance

In professional use, checking the state of charge and the battery hold-down regularly prevents breakdowns on the road. Vibration and the high temperatures of the engine bay are what shortens a battery's life most, so secure mounting is key. Keeping the terminals clean and tight and checking the charging system extends battery life in vehicles that clock up long hours. A well-maintained battery reduces the risk of downtime caused by a battery that will not start the engine.