# Truck battery Deta DG1250 12V 125Ah 760A ![Truck battery Deta DG1250 12V 125Ah 760A](https://baterias.com/3594-home_default/battery-deta-dg1250-12v-125ah-760a.jpg) > Deta DG1250 truck battery 12V 125Ah 760A. StartPRO range. Dimensions 349Γ—175Γ—285 mm, + terminal on the right. For heavy-duty fleets. **Category:** [Truck Batteries](https://baterias.com/gb/batteries-for-truck) β†’ [Deta](https://baterias.com/gb/deta) - **Canonical URL**: https://baterias.com/gb/battery-deta-dg1250-12v-125ah-760a - **Language**: en-GB - **Brand**: Deta - **Reference**: BCOM-DETA-DG1250 - **EAN**: 3661024025409 - **MPN**: DG1250 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | DETA | | Reference | DG1250 | | Model | DETA StartPRO | | Voltage (V) | 12 V | | Largo | 349 mm | | Ancho | 175 mm | | Alto | 285 mm | | Peso | 29.5 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024025409 | | Terminal layout | Positive terminal on the right | | Hold down | B00 | | Cold cranking amps (EN) | 760 A | | Capacity (C20) | 125 Ah (c20) | | Case type | D03 | ## Quick description **Deta DG1250 12V 125Ah 760A** 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 Duty** built for intensive professional use - **Long cold-diesel cranks** reliable even in extreme cold - **Powers services at idle** tachograph, heater and lights with engine off πŸ”Œ Voltage 12 V ⚑ Capacity 125 Ah C20 πŸ”‹ Cold cranking 760 A EN-1 πŸ“ Dimensions 349Γ—175Γ—285 mm βš™οΈ Technology Lead-acid 🧭 Polarity Positive on the right βš–οΈ Weight 29,5 kg 🏷️ Model DETA StartPRO ## Description ## Truck battery Deta DG1250 StartPRO 125Ah 760A 12V 12*V* Voltage 125*Ah* Capacity 760*A* Cold cranking 29.50*kg* Weight The **Deta DG1250 truck battery** is rated at **12 V**, **125 Ah** and **760 A** of cold cranking current (EN) from the **StartPRO** range, and is prepared for trucks, buses, tractors and heavy machinery. It replaces the original battery without adaptation in trucks with a 349 Γ— 175 Γ— 285 mm format: same 125 Ah capacity and the positive terminal on the right. - 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. ### Dimensions, polarity and mounting It has external dimensions of 349 Γ— 175 Γ— 285 mm and weighs 29.50 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 B00 hold-down, 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 the Deta DG1250 is for The Deta DG1250 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 and B00 hold-down. ### The Deta DG1250: StartPRO range and conventional lead-acid technology Within the Deta catalogue, the **StartPRO** series groups the references designed for this use. The DG1250 is the 125 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### Deta: the maker behind the DG1250 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. ### Manufacturer's warranty The Deta DG1250 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**. ### Usage and maintenance tips In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing. Keep the terminals clean and tight and the battery firmly secured against chassis vibration. ### When you get it and how to return it Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 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 **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### How do I fit the DG1250 model in my truck? 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 our blog. 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 (βˆ’) 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 β€” with positive on the right match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On trucks with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Deta DG1250 battery last? Expected lifespan of the Deta DG1250 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 size is this battery? Dimensions (length Γ— width Γ— height) are 349Γ—175Γ—285 mm β€” also written as 349x175x285 mm β€” 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 polarity does the Deta DG1250 battery have? Polarity: positive on the right. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk. ### Will the Deta DG1250 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 β€” we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The DG1250 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Deta DG1250? 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 β€” 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. ## Equivalent batteries - [VARTA J1](https://baterias.com/gb/battery-varta-j1-12v-125ah-720a) - [TUDOR TF1420](https://baterias.com/gb/battery-tudor-tf1420-142ah-850a) - [Q-battery BATTERY-12SEM-135](https://baterias.com/gb/battery-q-battery-12sem-135-12v-135ah) - [Q-battery BATTERY-12TTB-130](https://baterias.com/gb/battery-q-battery-12ttb-130-12v-130ah) - [EXIDE EF1420](https://baterias.com/gb/battery-exide-ef1420-12v-142ah-850a) - [EXIDE EG1250](https://baterias.com/gb/battery-exide-eg1250-12v) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team β€” automotive battery specialists since 2012. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-22*