Tudor TG1251 Start Pro · Truck battery 125Ah 760A

Truck battery Tudor TG1251 Start PRO (Hd) 125Ah 760A 12V

The Tudor TG1251 with conventional lead-acid technology delivers 125 Ah at 12 V and 760 A of cold cranking current (EN): what trucks, buses, tractors and heavy machinery demand. 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 Tudor TG1251 (125 Ah, 760 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 Tudor TG1251 is for

The Tudor TG1251 is designed for trucks, buses, tractors and heavy machinery. In 24 V installations with two batteries in series, replace both at the same time to avoid imbalance. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 29.50 kg, EN taper post terminals and B0 hold-down.

Size, terminals and hold-down of the Tudor TG1251

The Tudor TG1251 is made in the 349 × 175 × 285 mm format and weighs 29.50 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.

What Tudor does differently

Tudor has made batteries in Spain for more than a century and remains one of the brands most trusted by Spanish workshops for reliability and value. We guarantee that every Tudor arrives new, charged and with the manufacturer's full warranty.

The Tudor TG1251: Start PRO (Hd) range and conventional lead-acid technology

The TG1251 is part of the Tudor Start PRO (Hd) range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.

Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.

Usage and maintenance tips

In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing. On batteries with filler caps, check the electrolyte level and top up only with distilled water.

Manufacturer's warranty

The Tudor TG1251 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.