Exide EF1251 · Truck battery 12V 125Ah 850A

Truck battery Exide EF1251 PowerPRO 125Ah 850A 12V

The Exide EF1251 truck battery is rated at 12 V, 125 Ah and 850 A of cold cranking current (EN) from the PowerPRO range, and is prepared for trucks, buses, tractors and heavy machinery. It measures 349 × 175 × 285 mm and the positive terminal on the left, the format sought by anyone replacing a 125 Ah battery in trucks.

In short: the Exide EF1251 (125 Ah, 850 A, 349 × 175 × 285 mm, positive terminal on the left). Verified equivalent alternatives: Varta J2 and Exide EG1251.

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

What the Exide EF1251 is for

With 125 Ah, the Exide EF1251 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 31 kg, EN taper post terminals and B0 hold-down.

Will it fit your current battery tray?

It has external dimensions of 349 × 175 × 285 mm and weighs 31 kg. The positive terminal on the left 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 B0 hold-down and EN taper post terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

The Exide EF1251: PowerPRO range and conventional lead-acid technology

The PowerPRO is the Exide range the EF1251 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.

In a conventional battery the electrolyte is liquid and the lead plates are immersed in it. It is a mature, economical and easily recycled technology, ideal for starting vehicles in normal use.

Exide: the maker behind the EF1251

Exide is one of the world's largest battery manufacturers and an original-equipment supplier to many car makers. Its European plants produce starter, industrial and leisure batteries under original-equipment quality controls. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

Manufacturer's warranty

The Exide EF1251 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.

Care and maintenance

During rest stops with active loads, avoid repeated deep discharges: they shorten the life of any starter battery. In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing.

When you get it and how to return it

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.