# Car battery Varta B24 12V 45Ah 300A ![Car battery Varta B24 12V 45Ah 300A](https://baterias.com/3989-home_default/battery-varta-b24-12v-45ah-300a.jpg) > Varta B24 car battery 12V 45Ah 300A. Official Varta Distributor. Dynamic SLI range. Dimensions 220×135×225 mm, + terminal on the left. Check fitment by plate. **Category:** [Car Batteries](https://baterias.com/gb/car-batteries) → [VARTA](https://baterias.com/gb/varta) - **Canonical URL**: https://baterias.com/gb/battery-varta-b24-12v-45ah-300a - **Language**: en-GB - **Brand**: VARTA - **Reference**: BCOM-VARTA-B24 - **EAN**: 4016987167731 - **MPN**: B24 - **Price**: 81,40 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | VARTA | | Reference | B24 | | Model | Dynamic SLI (antes Blue Dynamic) | | Voltaje | 12 V | | Largo | 219 mm | | Ancho | 135 mm | | Alto | 225 mm | | Peso | 10.8 kg | | Tecnología | PLOMO/ACIDO | | EAN | 4016987167731 | | Scheme | Positive terminal on the left | | Terminal | 1 | | Subjection | B01 | | Arranque en frío CCA EN | 300 A | | Capacidad C20 (Ah) | 45 Ah (c20) | | ETN | 5450790303122 | ## Quick description **Varta B24 12V 45Ah 300A** is a ready-to-use passenger car battery, sealed and maintenance-free. Delivers the cranking amps the engine needs in cold weather and keeps stable voltage for modern car loads (ECU, sensors, climate control, infotainment). ### 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 🔌 Voltage 12 V ⚡ Capacity 45 Ah C20 🔋 Cold cranking 300 A EN-1 📏 Dimensions 220×135×225 mm ⚙️ Technology Plomo-Ácido 🧭 Polarity Positivo a la izquierda ⚖️ Weight 10,7 kg 🏷️ Model Dynamic SLI ## Description ## Varta B24 Dynamic SLI (formerly Blue Dynamic) 45Ah 300A 12V Car Battery 12*V* Voltage 45*Ah* Capacity 300*A* Cold cranking 10,8*kg* Weight The **Varta B24 car battery** is the **12 V**, **45 Ah** model with **300 A** of cold cranking power (EN) from Varta's **Dynamic SLI (formerly Blue Dynamic)** range, intended for cars with conventional starting, without a Start-Stop system. It replaces the original battery with no modifications in cars using the 219 × 135 × 225 mm format: the same 45 Ah capacity and the same terminal layout (positive on the left). - Direct replacement for the original battery in cars without Start-Stop. - Reliable cold starting thanks to its high cranking current. - Long service life with normal use and a charging system in good order. - Maintenance-free lead-acid technology: no topping up with water. ### Vehicles compatible with the Varta B24 battery The Varta B24 is compatible with more than 20 vehicles: it is fitted as standard or as a replacement by brands such as Morgan, Talbot, Austin, Reliant, Hyundai and Rover. It is a go-to option when you need a **battery for a Morgan**, Talbot or other models that use this same format. It also appears as a replacement in vehicles from Morris and Bedford, among other manufacturers. It has been cross-checked against 6 original equipment references from different manufacturers. Not sure whether it is the one for your car? Check in seconds by entering your **registration** in our finder. ### Format and fitting of the Varta B24 The Varta B24 is made in the 219 × 135 × 225 mm format and weighs 10,8 kg. The positive terminal on the left determines which side the cables end up on: it is the detail that causes the most buying mistakes, so it is worth checking before you order. It uses a B01 hold-down and terminal 1, the system that anchors it to the vehicle's battery tray. Checking the three dimensions and the terminal position before buying avoids the most common error when replacing a battery. ### The Varta B24 and the Dynamic SLI range The **Dynamic SLI** is Varta's entry range for vehicles with traditional starting (without Start-Stop), bringing what used to be the Blue, Silver and Black Dynamic series together under a single name by technology. Its lead-calcium construction with optimised separators puts the emphasis on punchy starting and a long, maintenance-free life. It covers the vast majority of conventional petrol and diesel cars on the European market. It is the sensible choice when you want German manufacturing quality without paying the premium for AGM or EFB technology the vehicle does not need. Compared with an EFB or AGM Start-Stop battery, this range puts the emphasis on a keen price and punchy starting in conventional cars. With proper care — avoiding deep discharges and checking the alternator — a battery from this series delivers several years of trouble-free service. *This battery used to belong to Varta's **Blue Dynamic**, **Silver Dynamic** or **Black Dynamic** range; following the brand's commercial renaming (2025), it forms part of the new **Dynamic SLI** series.* ### Why choose a Varta battery Manufactured by Clarios to German standards, Varta is one of the world's benchmark brands in starter batteries and an OEM supplier to the leading car makers. Choosing it as a replacement guarantees specifications equal to or better than the originals. Behind Varta is Clarios, one of the largest manufacturers of starter batteries in the world and a supplier to the assembly lines of numerous car brands. That German engineering heritage translates into reliable starting year after year. More than 100 manufacturing parameters are checked on every Varta battery before it leaves the plant, a level of rigour that explains why so many workshops and manufacturers trust the brand as their first-choice replacement. ### Manufacturer's warranty The Varta B24 battery comes with **a 2-year official warranty** from the manufacturer. ### Care and maintenance To get the most out of it, keep the alternator in good order and avoid leaving lights or accessories on with the engine switched off. Repeated very short journeys are its main enemy: they stop the battery from recharging fully and shorten its life. If the car is going to stand unused for weeks, it is worth disconnecting the terminal or using a trickle charger so it does not drop below the safe threshold. Making sure the terminals are clean and properly tightened also helps towards reliable starting. ### Technical sheet Download the official technical sheet for this battery with all the manufacturer data. [Download technical sheet (PDF)](/fichastecnicas/data-sheet-battery-varta-b24-45ah-300a-12v-en.pdf) ## Frequently asked questions ### How do I verify this battery is the right one? Three ways: 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 for the B24; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET). ### How do I change this battery step by step? 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 this page. 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 (−) 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 — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What warranty does the Varta B24 battery have? The official manufacturer warranty is 2 years and covers manufacturing defects. Coverage includes cell breakdowns, internal short-circuits and abnormal capacity decreases. Wear from misuse (prolonged overcharging, wrong charger or faulty alternator) is not covered. Once the defect is verified by technical inspection, we replace the B24 at no cost. ### How long does Varta B24 delivery take? In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships. ### Can I return the Varta B24 battery if it doesn't fit or doesn't work? Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period. ### How much does the Varta B24 battery cost? The current price at baterias.com is 81,40 € (VAT included; 67,27 € excl. VAT), updated every 24 hours. The applicable VAT may vary with the destination country and is confirmed in the cart. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). ### Where can I buy the Varta B24 battery? At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point. ### How many years does this battery last? Expected lifespan of the Varta B24 is 4 to 6 years in regular car 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 Varta B24 battery? Dimensions (length × width × height) are 220×135×225 mm — also written as 220x135x225 mm — 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. ### How much does the Varta B24 battery weigh? It weighs 10,7 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre). ### What is the capacity and CCA of the B24 model? Nominal capacity 45 Ah[?cca: and [cold-cranking amps 300 A]] at 12 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer. ### Under which reference is the Varta B24 listed in catalogues? The manufacturer reference (MPN) is B24 and its ETN code is 5450790303122 (short form 545 079 030), the European identifier used in spare-part catalogues. The EAN-13 barcode is 4016987167731. It belongs to the Varta Dynamic SLI range. Any of these codes identifies exactly this battery when requesting quotes or comparing prices. ### Will the Varta B24 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 — we reply during business hours (Mon–Fri 9:00–18:00 CET). The B24 fits 48 verified vehicle versions in our database. ### What are the equivalents of the B24 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 — 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. ### Which is better: Varta B24 or an alternative from another brand? This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Exide Technologies) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section. ### What do users say about the Varta B24 battery? The average rating of the Varta B24 on baterias.com is 4.74/5 from 24 verified customer reviews. The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.5/5 from 11,566+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped cars that need OBD registration after fitting. ## Compatible vehicles This battery fits 48 vehicles. Most searched: - [MORGAN FOUR FOUR (1990)](https://baterias.com/gb/car-batteries/morgan/four-four) - [MORGAN PLUS FOUR (1990)](https://baterias.com/gb/car-batteries/morgan/plus-four) - [MORGAN PLUS EIGHT (1990)](https://baterias.com/gb/car-batteries/morgan/plus-eight) - [AUSTIN MINI II (1990)](https://baterias.com/gb/car-batteries/austin/mini-ii) - [TALBOT EXPRESS 1000 -1800 Van (1990)](https://baterias.com/gb/car-batteries/talbot/express-1000-1800-van) - [TALBOT EXPRESS 1000 -1500 Bus (1990)](https://baterias.com/gb/car-batteries/talbot/express-1000-1500-bus) - [AUSTIN MINI I (1990)](https://baterias.com/gb/car-batteries/austin/mini-i) - [TALBOT EXPRESS 1000 -1500 Platform/Chassis (1990)](https://baterias.com/gb/car-batteries/talbot/express-1000-1500-platformchassis) - [ROVER MINI Hatchback (1990)](https://baterias.com/gb/car-batteries/rover/mini-hatchback) - [RELIANT SCIMITAR SABRE Roadster (1992)](https://baterias.com/gb/car-batteries/reliant/scimitar-sabre-roadster) - [HYUNDAI LANTRA I (J-1) (1990)](https://baterias.com/gb/car-batteries/hyundai/lantra-i-j-1) - [RELIANT SCIMITAR Roadster (1990)](https://baterias.com/gb/car-batteries/reliant/scimitar-roadster) - [AUSTIN METRO I Fastback (XF) (1990)](https://baterias.com/gb/car-batteries/austin/metro-i-fastback-xf) - [MORRIS MARINA Station Wagon (1990)](https://baterias.com/gb/car-batteries/morris/marina-station-wagon) - [BEDFORD RASCAL Van (1990)](https://baterias.com/gb/car-batteries/bedford/rascal-van) ## Equivalent batteries - [TUDOR TB451](https://baterias.com/gb/battery-tudor-tb451-45ah-330a) - [EXIDE EB451](https://baterias.com/gb/battery-exide-eb451-12v-45ah-330a) ## Reviews - **Average rating**: 4.74 / 5 (24 reviews) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-09-12*