Truck battery Varta I9 12V 120Ah 780A

Battery VARTA I9 12V 120Ah 780A
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  • Battery VARTA I9 12V 120Ah 780A
  • Battery VARTA I9 12V 120Ah 780A
  • Battery VARTA I9 12V 120Ah 780A
  • Battery VARTA I9 12V 120Ah 780A
  • Battery VARTA I9 12V 120Ah 780A
€122.70
VAT included
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  • +11,077 reviews

Brand VARTA Reference I9

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4,81· 27 reseñas

Varta I9 12V 120Ah 780A is a professional battery for heavy commercial vehicles. Withstands constant chassis vibration, supports long cold-engine cranks and keeps auxiliary services running (tachograph, heater, refrigeration, GPS) during driver's mandatory rest stops.

Why this truck battery?

  • True Heavy Dutybuilt for intensive professional use
  • Long cold-diesel cranksreliable even in extreme cold
  • Powers services at idletachograph, heater and lights with engine off
Voltage
12 V
Capacity
120 Ah C20
Cold cranking
780 A EN-1
Dimensions
349×175×236 mm
Technology
Plomo-Ácido
Polarity
Positivo a la derecha
Weight
29,01 kg
Model
ProMotive SLI
Logo Varta

Varta I9 ProMotive SLI (formerly ProMotive HD) 120Ah 780A 12V Lorry Battery

12VVoltage
120AhCapacity
780ACold cranking
30.91kgWeight

The Varta I9 lorry battery is the 12 V, 120 Ah model delivering 780 A of cold cranking power (EN), from Varta's ProMotive SLI (formerly ProMotive HD) range, designed for lorries, buses, large vans and machinery. Its 347 × 173 × 234 mm dimensions and positive terminal on the right make it the exact replacement for the 120 Ah battery fitted as standard in many lorries.

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

Vehicles compatible with the Varta I9 battery

This battery is listed as compatible with more than 869 vehicles from manufacturers such as Massey Ferguson, Fendt, Case International, New Holland, Volvo and Bührer. If you are looking for a battery for a Massey Ferguson or a Fendt with these dimensions, the I9 is one of the usual replacement references. It also appears as a replacement in vehicles from Case, JCB, Atlas, John Deere, Ford, Timberjack, Holman and Renault, among other manufacturers.

Format and fitting of the Varta I9

Its external dimensions are 347 × 173 × 234 mm and it weighs 30.91 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 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 I9 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.

Commercial vehicles demand high cranking current and endurance against the vibration of thousands of kilometres. This series uses reinforced grids and a robust construction to cope with repeated starts of large diesel engines and with the draw of the cab's auxiliary equipment. 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

Choosing Varta means sticking with the reference the vehicle manufacturer itself signed off in the first place. Against own-brand batteries, the difference is not the purchase price but how many winters the battery lasts before it leaves you stranded.

Behind Varta is Clarios, one of the largest manufacturers of starter batteries in the world and a supplier to the assembly lines of numerous car brands. That German engineering heritage translates into reliable starting year after year.

Varta is Europe's leading manufacturer 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 I9 battery comes with a 1-year official warranty from the manufacturer. 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)

BCOM-VARTA-I9

Data sheet

Brand
VARTA
Reference
I9
Model
Varta ProMotive SLI
Volts
12
Length
347.00 mm
Width
173.00 mm
Height
234.00 mm
Weight
30.91 Kgs
Technology
PLOMO/ACIDO
EAN
4016987166468
Scheme
Positive terminal on the right
Terminal
1
Subjection
B00
CCA (EN)
780A
Ah (c20)
120Ah (c20)
ETN
620047078A742

Specific References

EAN13
4016987166468
MPN
I9

Codes and references Varta I9

Brand Varta · see all batteries Varta
Manufacturer range ProMotive SLI (formerly ProMotive HD)
Manufacturer reference (MPN) I9
ETN code 620047078A742
EAN-13 barcode 4016987166468
Dimensions (length × width × height) 349 × 175 × 236 mm (349x175x236)

Recommended accessories — complement the Varta I9 with a charger or tester

Compatible vehicles

The Varta I9 fits 869 vehicles. Most searched below:

See all 869 compatible vehicles

How to change the battery

Guide to replace a truck battery in 30-60 minutes. Truck batteries weigh 25-50 kg — we recommend working in pairs and using a carrying strap.

⏱ 30-60 min🛠 Tools: 13 mm or 17 mm wrench (depending on make) · Protective gloves
  1. Step 1. Prepare the vehicle

    Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.

  2. Step 2. Locate the battery

    Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.

  3. Step 3. Disconnect the negative (−) terminal

    Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.

  4. Step 4. Disconnect the positive (+) terminal

    Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.

  5. Step 5. Remove the old battery (two people)

    Loosen the bottom hold-down clamp. Truck batteries weigh 25-50 kg — lift in pairs with gloves and a carrying strap. Forcing the lift alone risks back injury.

  6. Step 6. Install the new battery

    Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.

  7. Step 7. Connect the cables

    Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.

  8. Step 8. Verify the engine starts

    Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.

Frequently asked questions

How do I check that the Varta I9 battery fits my vehicle?

Three ways: 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 for the I9; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET).

How is the Varta I9 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 official warranty period of this truck battery?

This battery includes 1 year of official manufacturer warranty against manufacturing defects. It covers internal electrical failures and abnormal capacity drops. It does NOT cover misuse (sulfation from heavy duty without proper recharge, alternator overcharge, etc.). On confirmed defect after technical inspection, we replace the I9 at no cost.

How long does Varta I9 delivery take?

In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships.

How do I return the I9 model if it doesn't fit?

Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period.

What is the price of the I9 model?

The current price at baterias.com is €122.70 (VAT included; €101.41 excl. VAT), updated every 24 hours. The applicable VAT may vary with the destination country and is confirmed in the cart. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery).

Where do I find the I9 model online?

At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point.

What is the service life of the I9 model?

Expected lifespan of the Varta I9 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 I9 model?

Dimensions (length × width × height) are 349×175×236 mm — also written as 349x175x236 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.

What is the weight of the I9 model?

It weighs 29 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre).

How many Ah and CCA does this battery have?

Nominal capacity 120 Ah[?cca: and [cold-cranking amps 780 A]] at 12 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer.

Will the Varta I9 battery fit my truck?

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 9:00–18:00 CET). The I9 fits 869 verified vehicle versions in our database.

Which batteries are equivalent to the Varta I9?

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.

Which is better: Varta I9 or an alternative from another brand?

This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Exide Technologies) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section.

What do users say about the Varta I9 battery?

The average rating of the Varta I9 on baterias.com is 4.81/5 from 27 verified customer reviews. The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.5/5 from 11,077+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped trucks that need OBD registration after fitting.


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