# Fulmen FL752 · Start-Stop battery 12V 75Ah 730A ![Fulmen FL752 · Start-Stop battery 12V 75Ah 730A](https://bateriasonline.es/2731-home_default/fulmen-fl752.jpg) > Fulmen FL752: 75 Ah Start-Stop battery, 730 A (EN), 315×175×175 mm, positive terminal on the right, LB4 case, EFB. Equivalent to Exide EL752 and Tudor TL752. **Category:** [Start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb) → [Fulmen](https://bateriasonline.es/en/fulmen-batteries) - **Canonical URL**: https://bateriasonline.es/en/fulmen-fl752 - **Language**: en - **Brand**: Fulmen - **Reference**: BOL-FULMEN-FL752 - **EAN**: 3661024046329 - **MPN**: FL752 - **Last updated**: 2026-11-06 ## Technical specifications | Feature | Value | |---|---| | Brand | Fulmen | | Range | FULMEN EFB | | Application | Start-Stop cars | | Technology | EFB | | Voltage | 12 V | | Capacity | 75 Ah | | Cold cranking amps (EN) | 730 A | | Length | 315 mm | | Width | 175 mm | | Height | 175 mm | | Weight | 18.6 kg | | Polarity | Positive terminal on the right | | Case size | LB4 (315 × 175 × 175 mm) | ## Quick description Fulmen FL752: Start-Stop battery (EFB) with 12 V, 75 Ah and 730 A cold cranking current, case size LB4 (315 × 175 × 175 mm), with the positive terminal on the right. ## Description ## Who the Fulmen FL752 is for The Fulmen FL752 is a battery for cars with Start-Stop: it withstands many more starting and partial-discharge cycles than a conventional battery and powers the electronics every time the engine stops at the lights. It takes repeated discharges without losing capacity the way a conventional battery would. At 75 Ah it sits in the range of compact and mid-size diesels, SUVs and MPVs. The FL752 belongs to the Fulmen FULMEN EFB range. [The full range of Fulmen batteries](https://bateriasonline.es/en/fulmen-batteries) ## Part numbers and codes for the Fulmen FL752 Look for any of these FL752 codes on your current battery or in the manufacturer's catalogue: | Commercial reference | FL752 | |---|---| | EAN | 3661024046329 | | Case size (EN) | LB4 | | Not to be confused with | Fulmen FL652 (65 Ah, 650 A), Fulmen FL754 (75 Ah, 750 A) | ## Fulmen FL752 vs FL800 and FK800: differences The real differences between the FL752 and the closest Fulmen models: | Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight | |---|---|---|---|---|---| | Fulmen FL752 (this one) | 75 Ah | 730 A | 315 × 175 × 175 | right | 18.6 kg | | Fulmen FL800 | 80 Ah | 800 A | 315 × 175 × 190 | right | 22.1 kg | | Fulmen FK800 | 80 Ah | 800 A | 315 × 175 × 190 | right | 23.1 kg | - Fulmen FL800: 5 Ah more, 70 A more cranking power, a different case (315 × 175 × 190 mm). - Fulmen FK800: 5 Ah more, 70 A more cranking power, a different case (315 × 175 × 190 mm), AGM technology. ## Equivalents and alternatives to the Fulmen FL752 As the FL752 is an EFB, only EFB or AGM batteries of the same size and polarity are listed: you can step up to AGM, but not down to a conventional battery. | Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) | |---|---|---|---|---| | Exide EL752 | EFB | 75 Ah | 730 A | 315 × 175 × 175 | | Varta E46 | EFB | 75 Ah | 730 A | 315 × 175 × 175 | | Kronobat PE-75-EFB | EFB | 75 Ah | 730 A | 315 × 175 × 175 | | Tudor TL752 | EFB | 75 Ah | 730 A | 315 × 175 × 175 | | Deta DL752 | EFB | 75 Ah | 730 A | 315 × 175 × 175 | ## What it means that the FL752 is EFB The FL752 is an EFB: flooded lead-acid with reinforced plates and separators for Start-Stop. Compared with a conventional battery, the FL752 withstands far more starts and partial discharges. ## What to look at before buying the FL752 - The FL752 is an EFB: it suits cars that had an EFB or a conventional battery. If yours had an AGM, fit another AGM. - The FL752 delivers 730 A cold cranking (EN standard); do not go below what your original battery states. - Capacity of the FL752: 75 Ah; the same as your current battery or slightly more is fine. - Polarity of the FL752: positive terminal on the right (if yours has it on the other side, the cables will not reach). - The FL752 needs 315 × 175 × 175 mm of space (European case size LB4): measure it with the hold-down clamp in place. ## Frequently asked questions about the Fulmen FL752 ### FL752 or FL800: which one suits me? Compared with the FL752, the Fulmen FL800 has 5 Ah more and 70 A more cranking power. If your current battery says 800 A or more, choose the FL800; if it says 730 A or less, the FL752 is enough. Mind the space: the FL800 measures 315 × 175 × 190 mm. ### Can the Fulmen FL752 be used in a car with Start-Stop? Yes, the FL752 is an EFB: it suits Start-Stop without brake energy recovery, or cars that already had an EFB. If your car left the factory with an AGM, fit another AGM. ### How much does the Fulmen FL752 weigh? 18.6 kg, with 75 Ah of capacity. For reference, the Fulmen FL800 (80 Ah) weighs 22.1 kg. ### Which battery is equivalent to the Fulmen FL752? In EFB or AGM, with its dimensions and polarity: Exide EL752, Varta E46 and Kronobat PE-75-EFB. A conventional battery does not replace the FL752. ### What case size is the Fulmen FL752? Case size LB4: 315 × 175 × 175 mm. The FL752 fits any standard LB4 battery tray such as the Exide EL752. ### Which side is the positive terminal on the Fulmen FL752? On the FL752, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach. ### Which charger does the Fulmen FL752 need? An automatic charger with a lead-acid or EFB mode. Modern chargers recognise it like a conventional battery; avoid old ones without voltage control. ## Other options if you are unsure about the FL752 - [More start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb) - [The whole Fulmen range](https://bateriasonline.es/en/fulmen-batteries) - [Exide EL752](https://bateriasonline.es/en/exide-el752) · 75 Ah, 730 A, 315×175×175 mm - [Varta E46](https://bateriasonline.es/en/varta-e46) · 75 Ah, 730 A, 315×175×175 mm --- *bateriasonline.es — Batteries and accessories · 2026-11-10*