# Truck battery Fulmen FG1705 12V 170Ah 950A ![Truck battery Fulmen FG1705 12V 170Ah 950A](https://baterias.com/3731-home_default/battery-fulmen-fg1705-12v-170ah-950a.jpg) > Fulmen FG1705 truck battery 12V 170Ah 950A. StartPRO range. Dimensions 514Γ—218Γ—210 mm, + terminal on the left. For heavy-duty fleets. **Category:** [Truck Batteries](https://baterias.com/gb/batteries-for-truck) β†’ [Fulmen](https://baterias.com/gb/fulmen) - **Canonical URL**: https://baterias.com/gb/battery-fulmen-fg1705-12v-170ah-950a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FG1705 - **EAN**: 3661024045537 - **MPN**: FG1705 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FG1705 | | Model | FULMEN StartPRO | | Voltage (V) | 12 V | | Largo | 514 mm | | Ancho | 218 mm | | Alto | 210 mm | | Peso | 42.5 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024045537 | | Terminal layout | Positive terminal on the left | | Hold down | B03 | | Cold cranking amps (EN) | 950 A | | Capacity (C20) | 170 Ah (c20) | | Case type | DB9 | ## Quick description **Fulmen FG1705 12V 170Ah 950A** is an SHD (Super Heavy Duty) truck battery for intensive professional use. Vibration-resistant, withstands long cold-diesel cranks and deep discharges during parking with active loads (tachograph, refrigeration, heater). ## 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 170 Ah C20 πŸ”‹ Cold cranking 950 A EN-1 πŸ“ Dimensions 514Γ—218Γ—210 mm βš™οΈ Technology Lead-acid 🧭 Polarity Positive on the left βš–οΈ Weight 42,5 kg 🏷️ Model FULMEN StartPRO ## Description ## Truck battery Fulmen FG1705 StartPRO 170Ah 950A 12V 12*V* Voltage 170*Ah* Capacity 950*A* Cold cranking 42.50*kg* Weight The **Fulmen FG1705 truck battery** is rated at **12 V**, **170 Ah** and **950 A** of cold cranking current (EN) from the **StartPRO** range, and is prepared for trucks, buses, tractors and heavy machinery. It measures 514 Γ— 218 Γ— 210 mm and the positive terminal on the left, the format sought by anyone replacing a 170 Ah battery in trucks. - Designed for 24 V installations with two batteries in series. - Powerful cold cranking for large-displacement diesel engines. - Heavy Duty construction for intensive professional use. - Conventional lead-acid: the most proven and economical technology. ### What the Fulmen FG1705 is for With 170 Ah, the Fulmen FG1705 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 42.50 kg and B03 hold-down. ### Will it fit your current battery tray? It has external dimensions of 514 Γ— 218 Γ— 210 mm and weighs 42.50 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 B03 hold-down, 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 With more than a century of history, Fulmen offers complete ranges for cars, trucks, motorcycles and leisure with the industrial quality of the Exide group. All the Fulmen batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### The Fulmen FG1705: StartPRO range and conventional lead-acid technology The **StartPRO** is the Fulmen range the FG1705 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 In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing. During rest stops with active loads, avoid repeated deep discharges: they shorten the life of any starter battery. ### Manufacturer's warranty The Fulmen FG1705 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 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. ## Frequently asked questions ### How do I change this battery step by step? 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 left 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 many years does this battery last? Expected lifespan of the Fulmen FG1705 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 are the dimensions of the Fulmen FG1705 battery? Dimensions (length Γ— width Γ— height) are 514Γ—218Γ—210 mm β€” also written as 514x218x210 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 Fulmen FG1705 battery have? Polarity: positive on the left. 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 Fulmen FG1705 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 FG1705 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the FG1705 model? 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. ## 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· 2026-10-26*