# Truck battery Varta J2 12V 125Ah 720A ![Truck battery Varta J2 12V 125Ah 720A](https://baterias.com/4223-home_default/battery-varta-j2-12v-125ah-720a.jpg) > Varta J2 truck battery 12V 125Ah 720A. Official Varta Distributor. ProMotive SLI range. Dimensions 349×175×285 mm, + terminal on the left. **Category:** [Truck Batteries](https://baterias.com/gb/batteries-for-truck) → [VARTA](https://baterias.com/gb/varta) - **Canonical URL**: https://baterias.com/gb/battery-varta-j2-12v-125ah-720a - **Language**: en-GB - **Brand**: VARTA - **Reference**: BCOM-VARTA-J2 - **EAN**: 4016987166505 - **MPN**: J2 - **Price**: 139,70 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | VARTA | | Reference | J2 | | Model | ProMotive SLI (antes ProMotive HD) | | Voltage (V) | 12 V | | Largo | 349 mm | | Ancho | 175 mm | | Alto | 290 mm | | Peso | 31.22 kg | | Tecnología | Lead-acid | | EAN | 4016987166505 | | Terminal layout | Positive terminal on the left | | Terminal type | 1 | | Hold down | B00 | | Cold cranking amps (EN) | 720 A | | Capacity (C20) | 125 Ah (c20) | | ETN | 625014072A742 | ## Quick description **Varta J2 12V 125Ah 720A** is an SHD (Super Heavy Duty) truck battery for intensive professional use. Vibration-resistant, withstands long cold-diesel cranks and deep discharges during parking with active loads (tachograph, refrigeration, heater). ### Why this truck battery? - **True Heavy Duty** built for intensive professional use - **Long cold-diesel cranks** reliable even in extreme cold - **Powers services at idle** tachograph, heater and lights with engine off 🔌 Voltage 12 V ⚡ Capacity 125 Ah C20 🔋 Cold cranking 720 A EN-1 📏 Dimensions 349×175×285 mm ⚙️ Technology Lead-acid 🧭 Polarity Positive on the left ⚖️ Weight 30,43 kg 🏷️ Model ProMotive SLI ## Description ## Varta J2 ProMotive SLI (formerly ProMotive HD) 125Ah 720A 12V Lorry Battery 12*V* Voltage 125*Ah* Capacity 720*A* Cold cranking 31.22*kg* Weight The **Varta J2 lorry battery** is the **12 V**, **125 Ah** model delivering **720 A** of cold cranking power (EN), from Varta's **ProMotive SLI (formerly ProMotive HD)** range, designed for lorries, buses, large vans and machinery. Its 349 × 175 × 290 mm dimensions and positive terminal on the left make it the exact replacement for the 125 Ah battery fitted as standard in many lorries. - Dependable through repeated starts and while powering cab equipment. - Reinforced grids and casing for the severe demands of haulage. - Withstands the vibration of thousands of kilometres on the road. - High cranking current for large-capacity diesel engines. ### Vehicles compatible with the Varta J2 battery According to our database, the Varta J2 is fitted to more than 405 vehicles from makes such as Case International, Leyland, International-Harvester, Valmet, Volvo and Case, among others. For anyone who needs to change the **battery in their Case International** or Leyland, this Varta J2 reproduces the original specifications. Added to that list are models from Valtra, Bristol, Case IH, Coles, Massey Ferguson, Ingersoll, Timberjack and Bührer. ### Format and fitting of the Varta J2 In format, the Varta J2 measures 349 × 175 × 290 mm (length × width × height) and weighs 31.22 kg. The positive terminal on the left 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 B00 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 J2 and the ProMotive SLI range The **ProMotive SLI** is Varta's starter battery range for commercial and industrial vehicles; it consolidates the former ProMotive HD and SHD names into a single series organised by technology. It delivers high cold cranking current and a construction designed for the severe demands of heavy haulage. It is the reliable replacement for lorries, buses, tractor units and machinery working long shifts: resistance to road vibration, tolerance of cycling and guaranteed starting even after weeks standing idle. 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 a byword for reliability: original equipment in a great many European vehicles and one of the most proven brands on the market. Replacing your battery with a Varta restores OEM quality — the same performance as the factory-fitted unit — with the manufacturer's backing behind it. 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 J2 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. ### Technical sheet Download the official technical sheet for this battery with all the manufacturer data. [Download technical sheet (PDF)](/fichastecnicas/data-sheet-battery-varta-j2-125ah-720a-12v-en.pdf) ## Frequently asked questions ### How is the Varta J2 battery installed in the vehicle? In most trucks it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On trucks with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What is the service life of the J2 model? Expected lifespan of the Varta J2 is 4 to 6 years in regular truck use without Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured. ### What are the measurements of the J2 model? Dimensions (length × width × height) are 349×175×285 mm — also written as 349x175x285 mm — following the European DIN standard. Always measure the space in your truck before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Is the J2 valid for my vehicle? Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The J2 fits 405 verified vehicle versions in our database. ### Which batteries are equivalent to the Varta J2? Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop trucks. See the "Equivalents" section to view recommended options at the same performance level. ## Compatible vehicles This battery fits 405 vehicles. Most searched: - [CASE INTERNATIONAL 600 (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/case-international/600) - [VALMET VALMET VALTRA (1990)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/valmet/valmet-valtra) - [FODEN |others (1990)](https://baterias.com/gb/batteries-for-truck/foden/others) - [CASE INTERNATIONAL 600 (1990)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/case-international/600) - [LEYLAND Others (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/leyland/others) - [LEYLAND Others (1990)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/leyland/others) - [INTERNATIONAL-HARVESTER 1000 (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/international-harvester/1000) - [VALMET Others (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/valmet/others) - [VALMET Others (1990)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/valmet/others) - [INTERNATIONAL-HARVESTER 400 (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/international-harvester/400) - [CASE INTERNATIONAL 400 (1990)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/case-international/400) - [VALTRA A SERIES (2002)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/valtra/a-series) - [INTERNATIONAL-HARVESTER 1000 (1990)](https://baterias.com/gb/batteries-for-construction-and-agricultural-machinery/international-harvester/1000) - [LEYLAND 200 (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/leyland/200) - [CASE IH Others (1990)](https://baterias.com/gb/batteries-for-agricultural-and-construction-vehicles/case-ih/others) ## Equivalent batteries - [EXIDE EG1251](https://baterias.com/gb/battery-exide-eg1251-12v-125ah-760a) - [TUDOR TG1251](https://baterias.com/gb/battery-tudor-tg1251-12v-125ah-760a) ## Reviews - **Average rating**: 4.68 / 5 (51 reviews) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-02*