# Car battery Long 46B24R(S)-MF 12V 45Ah ![Car battery Long 46B24R(S)-MF 12V 45Ah](https://baterias.com/1617-home_default/battery-long-46b24rs-mf-12v-45ah.jpg) > Long 46B24R(S)-MF car battery 12V 45Ah. Starting Series range. Dimensions 236Γ—127Γ—225 mm. Check fitment by plate. **Category:** [Car Batteries](https://baterias.com/gb/car-batteries) β†’ [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-46b24rs-mf-12v-45ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-46B24R(S)-MF - **MPN**: 46B24R(S)-MF - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | 46B24 R(S)-MF | | Model | Starting Series | | Voltage (V) | 12 V | | Largo | 236 cm | | Ancho | 127 cm | | Alto | 225 cm | | Peso | 9 kg | | Capacity (C20) | 45 Ah (c20) | | Capacity (C5) | 36 Ah (c5) | ## Quick description **Long 46B24R(S)-MF 12V 45Ah** is a passenger car battery with factory-guaranteed cranking power and extended service life. OEM quality at white-label prices: calcium-silver grids, low self-discharge and compatible with all modern electrical systems. ## Why this car battery? - **Original-equipment quality** without dealership prices - **Lasts 4 to 6 years** buy once instead of twice - **Real human tech support** if you have any doubts before buying πŸ”Œ Voltage 12 V ⚑ Capacity 45 Ah C20 πŸ“ Dimensions 236Γ—127Γ—225 mm βš–οΈ Weight 9 kg 🏷️ Model Starting Series ## Description ## Car battery Long 46B24R(S)-MF Starting Series 45Ah 12V 12*V* Voltage 45*Ah* Capacity 9*kg* Weight The **Long 46B24R(S)-MF** from the **Starting Series** range delivers **45 Ah** at **12 V**: the usual specification for passenger cars with conventional starting, without a Start-Stop system. Its 236 Γ— 127 Γ— 225 mm make it the exact replacement for the 45 Ah battery fitted as standard to many cars. - Designed to last several years under normal daily use. - Low self-discharge: copes with long stops without losing charge. - Stable voltage for the vehicle electronics (ECU, sensors, climate control). - Reliable cold starts, even after weeks without driving. ### Size, terminals and hold-down of the Long 46B24R(S)-MF It has external dimensions of 236 Γ— 127 Γ— 225 mm and weighs 9 kg. 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 the Long 46B24R(S)-MF is for Designed for passenger cars with conventional starting, without a Start-Stop system, the Long 46B24R(S)-MF is the direct replacement when your vehicle uses a 45 Ah battery of this format. Before buying, compare dimensions, terminals and capacity with the battery you are replacing. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 9 kg. ### The Long 46B24R(S)-MF within the Starting Series range The 46B24R(S)-MF is part of the Long **Starting Series** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. ### Long: the maker behind the 46B24R(S)-MF Long (Kung Long Batteries) is one of the world's largest manufacturers of sealed VRLA batteries. Its AGM and GEL series for UPS, mobility, alarms and cycling are found in equipment worldwide as original equipment. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Warranty and coverage The Long 46B24R(S)-MF comes with the **manufacturer's official warranty** against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge. ### Care and maintenance Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. Keep the terminals clean and tight, and check that the resting voltage does not drop below 12.4 V: below that it is time to recharge. ### Shipping, delivery 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. ## Frequently asked questions ### How is the Long 46B24R(S)-MF battery installed in the vehicle? In most cars 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€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What is the service life of the 46B24R(S)-MF model? Expected lifespan of the Long 46B24R(S)-MF is 4 to 7 years in regular use (depends on technology and climate). 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 Long 46B24R(S)-MF battery? Dimensions (length Γ— width Γ— height) are 236Γ—127Γ—225 mm β€” also written as 236x127x225 mm β€” following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Will the Long 46B24R(S)-MF battery fit my car? 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 46B24R(S)-MF typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the 46B24R(S)-MF 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 cars. 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· 2026-10-28*