The Bosch S4 battery series is designed for a wide range of vehicles, from passenger cars to light commercial vehicles. These batteries are known for their high build quality, reliability, and an optimal balance between price and performance. The Bosch S4 line is intended for drivers who require a solid power source with a long lifespan and stable performance. Thanks to modern technology and the use of high-quality lead alloys, S4 batteries offer excellent corrosion resistance and improved electrical conductivity, ensuring efficient engine startup even in challenging weather conditions. The Bosch S40 04 model has a capacity of 60 Ah and a maximum starting current of 540 A. Its dimensions are 242 mm in length, 175 mm in width, and 175 mm in height. In terms of standard sizes, it corresponds to the H5/LB2 format, which features a length of 242 mm, width of 175 mm, and height of 175 mm. This is a common European standard often found in popular passenger cars. Its reduced height of 175 mm makes it suitable for vehicles with limited mounting space. The Bosch S40 04 features a terminal layout of 0, meaning the positive terminal is on the right side. This is a typical configuration in European vehicles, ensuring easy compatibility with the vehicle’s electrical system. The standard terminal type 1 allows for hassle-free connection to most cars. Another important aspect is the B13 mounting system, meaning the battery has bottom hold-down fixings for secure placement in the engine compartment. This is a widely used system in European vehicles, making this model compatible with a broad range of passenger cars and commercial vehicles. In terms of performance, the Bosch S40 04 competes well with similar models. For example, the Exide EB602, Halfords HCB 075, and Varta D59 have identical dimensions and similar technical specifications, offering a 60 Ah capacity and a starting current of around 540-550 A. Meanwhile, the Exide EA612, Lucas LS075, and Varta D21 provide a slightly higher starting current of 600 A, but these differences are minor and may not be noticeable under normal operating conditions. In summary, the Bosch S40 04 is a reliable lead-acid battery that combines durability, good starting power, and long lifespan. Thanks to its European H5/LB2 format and B13 mounting system, it is compatible with many passenger car models. Its optimal specifications make it an excellent choice for drivers looking for a high-performance and durable battery for everyday use.