The Bosch S4 battery series is known for its strong balance between performance, longevity, and value. Designed for a wide range of passenger vehicles, the S4 line features dependable starting power and long service life. These maintenance-free batteries are engineered to provide reliable performance across seasons and are suitable for vehicles with moderate energy demands. The Bosch S4 range is particularly well-suited for European cars without advanced start-stop systems, delivering solid cold start performance and stable power for electrical systems such as lights, infotainment, and air conditioning.
The Bosch S40 10 is a prominent model within the S4 lineup, offering 80 Ah of capacity and a cold cranking amperage (CCA) of 740 A. This provides robust starting power even in lower temperatures, making it a great option for drivers in colder climates. It ensures quick and reliable engine starts while maintaining stable voltage levels for all onboard electronics. With a construction based on traditional flooded lead-acid technology, the S40 10 is optimized for vehicles not equipped with start-stop systems but requiring high cranking performance and long-lasting durability.
This battery measures 315 mm in length, 175 mm in width, and 175 mm in height, matching the H7/LB4 size category. This size is common in many European vehicles that require slightly lower profile batteries to fit into tighter engine compartments or beneath seats or covers. The reduced height of 175 mm is a deliberate design feature, allowing installation in spaces where the standard 190 mm height may be too tall. This makes the Bosch S40 10 an ideal fit for vehicles with unique space constraints or those where heat shielding above the battery requires lower overall dimensions.
The S40 10 features a standard terminal layout (0), meaning the positive terminal is located on the right when facing the battery. This configuration is the most common in European automotive designs. The battery is equipped with type 1 round posts, compatible with most European terminal clamps. Additionally, it has a B13 mounting base, which is widely used across European models. The B13 configuration includes a ledge running around the base of the battery for secure mounting in a wide range of battery trays. This ensures stability and prevents movement even in rough driving conditions.
Compared to similar models like the Varta Blue Dynamic F17 or the Exide EB802, the Bosch S40 10 delivers a nearly identical performance profile but benefits from Bosch’s reputation for durability and build quality. While models such as the Bosch S5 S50 10 or Exide EA852 offer slightly higher capacity (85 Ah) and CCA (800 A), the S40 10 remains a cost-effective and reliable alternative for vehicles where 80 Ah is sufficient.
In conclusion, the Bosch S40 10 is an excellent choice for drivers looking for a powerful and durable battery in a lower-profile European format. With its compact height, strong starting capabilities, and dependable Bosch engineering, it provides exceptional value and consistent performance for a wide range of applications. It’s particularly suitable for drivers who want a trusted solution without the extra cost of AGM or EFB technology.