Deta DG1203 · Truck battery 12V 120Ah 680A

Truck battery Deta DG1203 StartPRO 120Ah 680A 12V

The Deta DG1203 truck battery is rated at 12 V, 120 Ah and 680 A of cold cranking current (EN) from the StartPRO range, and is prepared for trucks, buses, tractors and heavy machinery. It measures 513 × 189 × 223 mm and the positive terminal on the left, the format sought by anyone replacing a 120 Ah battery in trucks.

In short: the Deta DG1203 (120 Ah, 680 A, 513 × 189 × 223 mm, positive terminal on the left). Verified equivalent alternatives: Varta M11 and Varta LFD140.

• 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 Deta DG1203 is for

Designed for trucks, buses, tractors and heavy machinery, the Deta DG1203 withstands constant chassis vibration and discharges during stops with active loads. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 32.50 kg and B00 hold-down.

Dimensions, polarity and mounting

In terms of format, the Deta DG1203 measures 513 × 189 × 223 mm (length × width × height) and weighs 32.50 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 B00 hold-down, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

What Deta does differently

Deta combines German engineering with Exide's industrial capacity. Its Power, Senator and PowerPRO series cover everything from urban cars to construction machinery. We guarantee that every Deta arrives new, charged and with the manufacturer's full warranty.

The Deta DG1203: StartPRO range and conventional lead-acid technology

The StartPRO is the Deta range the DG1203 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.

Usage and maintenance tips

Keep the terminals clean and tight and the battery firmly secured against chassis vibration. In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing.

Official warranty

The Deta DG1203 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.

When you get it and how to return it

Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.