The Bosch S4 battery series is a line of high-quality lead-acid batteries known for their reliability and excellent starting performance. They are designed for a wide range of vehicles – both passenger cars and commercial vehicles. Batteries in this series provide optimal power even in challenging weather conditions and are characterized by long service life. Thanks to modern technologies such as the PowerFrame grid, Bosch S4 batteries offer increased resistance to corrosion and ensure stable electrical parameters throughout their usage period.
The Bosch S40 20 model is a 45 Ah battery with a maximum starting current of 330 A. With dimensions of 238 mm in length, 129 mm in width, and 227 mm in height, it fits the B24 standard, which is more commonly found in Asian vehicles. This battery is an ideal choice for smaller passenger cars and some compact segment models, particularly those manufactured in Japan and Korea.
A key feature of this model is the terminal layout marked as 0, meaning the positive (+) terminal is on the right side. Additionally, the Bosch S40 20 is equipped with type 3 terminals, which are thinner than standard European terminals, a characteristic typical of batteries used in Japanese and Korean cars.
It is also worth noting the mounting type – this model uses the less common B0 mounting system, meaning that before purchasing, it is essential to ensure compatibility with the specific vehicle model.
The Bosch S40 20 battery is equivalent to other popular models on the market, such as Exide Excell EB456, Halfords Standard HCB 053, and Varta Blue Dynamic B31. All of these models have similar electrical specifications and share the same B24 standard size (238x129x227 mm), making them interchangeable in many Asian vehicles.