The Bosch S3 battery series is the basic, economical line of products from this renowned brand, designed for customers looking for proven and affordable solutions for their vehicles. The products in the S3 series are characterized by simple construction, robustness, and resistance to daily loads, making them ideal for users who value functionality over additional, advanced features. Thanks to the use of traditional technologies, Bosch S3 batteries guarantee a reliable engine start and long service life, which translates into comfort and safety on the road, especially in urban conditions and daily commutes.
The S30 03 model from the Bosch S3 series is a lead-acid battery with a capacity of 45 Ah, engineered to ensure a reliable engine start with a maximum cranking current of 400 A. Its dimensions are 207 mm in length, 175 mm in width, and 190 mm in height, which perfectly corresponds to the standard L1 size (207x175x190 mm). This format is typical for the European market, ensuring wide compatibility with many car models and facilitating its installation.
An interesting feature of the S30 03 model is its non-standard pole arrangement – the positive pole is located on the left side. This solution requires special attention during installation to ensure the correct connection of cables, but it does not negatively affect the battery’s performance. Additionally, the battery is equipped with a mounting system designated as B13, which provides solid and stable fixation even under intense vibrations and dynamic load changes. As a result, the user can be confident that the product will meet the demands of everyday operation.
Comparing the Bosch S30 03 with similar batteries available on the market, it is worth noting models such as the Exide Excell EB501 and the Varta Black Dynamic B20. The Exide EB501 offers a slightly higher capacity (50 Ah) and a maximum cranking current of 450 A, while maintaining the same dimensions (207x175x190 mm) and the B13 mounting system. On the other hand, the Varta Black Dynamic B20, also with a capacity of 45 Ah and a cranking current of 400 A, operates under identical mounting and size conditions. These comparisons confirm that the Bosch S30 03 is an attractive option for customers seeking an economical yet robust battery that combines traditional technology with a non-standard pole arrangement.
In summary, the Bosch S30 03 model from the S3 series is an economical and reliable battery, ideal for everyday vehicle use. Its standard European L1 size, non-standard pole arrangement (positive on the left), and robust B13 mounting system ensure ease of installation and long-lasting, trouble-free performance. Thanks to these solutions, the S30 03 is an excellent choice for drivers who value traditional Bosch quality at an affordable price.