# Car batteries from 40 to 45 Ah > More than 90 car batteries from 40 to 45 Ah in L0, L1, LB1, B24 and B19 cases, from Varta, Kronobat, Exide and Long. Buy online at the final price with VAT. **Category:** [Beginning](https://bateriasonline.es/en/) → [Battery types: starter, deep cycle, traction and stationary](https://bateriasonline.es/en/batteries) → [Starter batteries](https://bateriasonline.es/en/starter-batteries) → [Car batteries](https://bateriasonline.es/en/car-batteries) - **Canonical URL**: https://bateriasonline.es/en/car-batteries-40ah-45ah - **Language**: en ## Description Car batteries of 40–45 Ah for small cars and city cars, in European and Asian cases. Compare size and CCA and order online. ## Small car batteries of 40 to 45 Ah This capacity band covers city cars, superminis and small petrol engines. With more than 90 references it is one of our largest car battery groups: Varta (16), Kronobat (15), Exide, Tudor, Fulmen and Deta (13 each), Long (11) and Optima (3). The vast majority are flooded lead-acid; there are also 3 spiral-cell AGM batteries and one standard AGM. Because the capacity is similar but the cases are not, start by checking the size of your current battery: - **B24** (238 × 129 × 227 mm): 37 models, the narrow Asian format; see [B24 car batteries](https://bateriasonline.es/en/b24-car-batteries). - **L0** (175 × 175 × 190 mm) and **LB1** (207 × 175 × 175 mm): 12 models each; see [L0 car batteries](https://bateriasonline.es/en/l0-car-batteries) and [LB1 car batteries](https://bateriasonline.es/en/lb1-car-batteries). - **L1** (207 × 175 × 190 mm): 8 models, and **B19** (187 × 127 × 227 mm): 5 models. Cold cranking current ranges from 300 to 730 A, the top figure belonging to the Optima spiral-cell units. Popular references include the Varta B19 and B20 (45 Ah, 400 A) and the Varta B31 to B34 series (45 Ah, 330 A). ## Frequently asked questions ### Is a 45 Ah battery enough for my small car? If your car came with 40–45 Ah, yes. Always respect the original case size, polarity and technology. ### How can I find the exact model? Search by number plate in Spain, Portugal and Italy, by VIN, or call +34 951 870 157 for advice. ## Choose by brand The same car batteries from 40 to 45 Ah, filtered by manufacturer. Each brand has its own page with all its references and a buying guide. - [Varta car batteries](https://bateriasonline.es/en/varta-car-batteries) (16) - [Kronobat car batteries](https://bateriasonline.es/en/kronobat-car-batteries) (15) - [Exide car batteries](https://bateriasonline.es/en/exide-car-batteries) (13) - [Tudor car batteries](https://bateriasonline.es/en/tudor-car-batteries) (13) - [Fulmen car batteries](https://bateriasonline.es/en/fulmen-car-batteries) (13) - [Deta car batteries](https://bateriasonline.es/en/deta-car-batteries) (13) - [Long car batteries](https://bateriasonline.es/en/long-car-batteries) (11) - [Optima batteries](https://bateriasonline.es/en/optima-batteries) (3) ## Products in this category | Product | Brand | Price | |---|---|---| | [Exide EC400 · Car battery 12V 40Ah 320A](https://bateriasonline.es/en/exide-ec400) | Exide | 71,49 € | | [Exide EC412 · Car battery 12V 41Ah 370A](https://bateriasonline.es/en/exide-ec412) | Exide | 67,57 € | | [Exide EC440 · Car battery 12V 44Ah 360A](https://bateriasonline.es/en/exide-ec440) | Exide | 72,54 € | | [Exide EA406 · Car battery 12V 40Ah 350A](https://bateriasonline.es/en/exide-ea406) | Exide | 71,84 € | | [Exide EB440 · Car battery 12V 44Ah 400A](https://bateriasonline.es/en/exide-eb440) | Exide | 77,09 € | | [Exide EA456 · Car battery 12V 45Ah 390A](https://bateriasonline.es/en/exide-ea456) | Exide | 87,24 € | | [Exide EB442 · Car battery 12V 44Ah 420A](https://bateriasonline.es/en/exide-eb442) | Exide | 40,83 € | | [Exide EB450 · Car battery 12V 45Ah 330A](https://bateriasonline.es/en/exide-eb450) | Exide | 59,21 € | | [Exide EB451 · Car battery 12V 45Ah 330A](https://bateriasonline.es/en/exide-eb451) | Exide | 58,47 € | | [Exide EB454 · Car battery 12V 45Ah 330A](https://bateriasonline.es/en/exide-eb454) | Exide | 81,54 € | | [Exide EB455 · Car battery 12V 45Ah 330A](https://bateriasonline.es/en/exide-eb455) | Exide | 81,54 € | | [Exide EB456 · Car battery 12V 45Ah 330A](https://bateriasonline.es/en/exide-eb456) | Exide | 81,54 € | | [Exide EB457 · Car battery 12V 45Ah 330A](https://bateriasonline.es/en/exide-eb457) | Exide | 81,54 € | | [Varta A17 · Car battery 12V 41Ah 360A](https://bateriasonline.es/en/varta-a17) | Varta | 62,93 € | | [Varta B18 · Car battery 12V 44Ah 440A](https://bateriasonline.es/en/varta-b18) | Varta | 56,46 € | --- *bateriasonline.es — Batteries and accessories · 2026-11-11*