Fulmen FJ1000 · Truck battery 12V 100Ah 850A

Truck battery Fulmen FJ1000 PowerPRO y Construction 100Ah 850A 12V

The Fulmen FJ1000 with conventional lead-acid technology delivers 100 Ah at 12 V and 850 A of cold cranking current (EN): what trucks, buses, tractors and heavy machinery demand. It replaces the original battery without adaptation in trucks with a 353 × 175 × 190 mm format: same 100 Ah capacity and the positive terminal on the right.

In short: the Fulmen FJ1000 (100 Ah, 850 A, 353 × 175 × 190 mm, positive terminal on the right). Verified equivalent alternatives: Varta H3 and Tudor TA1000.

• Conventional lead-acid: the most proven and economical technology.
• Heavy Duty construction for intensive professional use.
• Powerful cold cranking for large-displacement diesel engines.
• Designed for 24 V installations with two batteries in series.

What the Fulmen FJ1000 is for

With 100 Ah, the Fulmen FJ1000 cranks large-displacement diesel engines in the cold and powers tachograph, fridge and heater during rest stops. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 21.80 kg, 1 terminals and B13 hold-down.

Will it fit your current battery tray?

The Fulmen FJ1000 is made in the 353 × 175 × 190 mm format and weighs 21.80 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B13 hold-down and 1 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

What Fulmen does differently

Fulmen is the historic French brand of the Exide group: batteries made on the same lines and with the same technology as original equipment, widely used by workshops across Europe. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

The Fulmen FJ1000: PowerPRO y Construction range and conventional lead-acid technology

The PowerPRO y Construction is the Fulmen range the FJ1000 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.

The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop.

How to make it last longer

During rest stops with active loads, avoid repeated deep discharges: they shorten the life of any starter battery. Keep the terminals clean and tight and the battery firmly secured against chassis vibration.

Official warranty

The Fulmen FJ1000 comes with the manufacturer's official warranty against manufacturing defects. An important note for commercial vehicles: most trucks use two batteries connected in series (24 V installation). If you replace only one, the new battery works alongside the old one, which has already lost capacity; that imbalance shortens its life and the manufacturer may treat it as misuse. Always replace both at the same time.

Delivery times and returns

Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.