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The Bosch S5 battery series is engineered for drivers who demand maximum reliability, long service life, and powerful starting performance. Positioned at the top tier of Bosch’s conventional battery offerings, the S5 range is ideal for high-performance vehicles equipped with numerous electrical components. These batteries are manufactured with Bosch’s PowerFrame® grid technology, which enhances conductivity, minimizes corrosion, and ensures high starting power even in extreme weather conditions. While not designed for vehicles with start-stop systems, the S5 series is an excellent match for modern vehicles without this feature but with higher-than-average energy demands.

The Bosch S50 05 is a standout in the S5 lineup, delivering 63 Ah of capacity and an impressive cold cranking current of 610 A. This level of performance ensures confident engine starts, even in cold conditions, and reliable power for cars that utilize systems such as heated seats, air conditioning, and infotainment systems. It’s a great choice for medium-sized petrol and diesel cars, offering a blend of performance, durability, and advanced engineering.

With dimensions of 242 mm in length, 175 mm in width, and 190 mm in height, the S50 05 aligns with the L2 size standard, which is a common European format for medium-capacity batteries. This sizing ensures compatibility with a wide range of vehicle types, especially European cars where space under the bonnet follows standardized battery tray dimensions.

The battery uses a B13 hold-down base, the most widely used mounting format in Europe. The B13 type features a continuous mounting ledge around the battery’s bottom perimeter, enabling secure fastening and vibration resistance during driving. The 0 terminal layout means that the positive terminal is located on the right side, which is typical for most European passenger vehicles. Additionally, the S50 05 comes with standard type 1 battery posts, making it compatible with most factory-fitted battery terminals.

As a premium lead-acid model, the S50 05 is built for longevity and low maintenance. While it does not support regenerative braking or start-stop technology, it compensates with a robust design that offers consistent power delivery over time. The advanced grid structure resists wear from deep discharges better than many traditional lead-acid batteries, extending its useful life.

Compared with similar batteries such as the Exide Premium EA640, Varta Silver Dynamic D15, or the more budget-conscious Exide EB620, the Bosch S50 05 offers a balance between performance and premium build quality. It stands just above Bosch’s own S40 05 in terms of starting power and durability. For drivers wanting to upgrade from a basic OEM battery or seeking a replacement that can handle greater electrical loads with ease, the S50 05 presents a compelling option.

In conclusion, the Bosch S5 S50 05 is a strong, reliable battery tailored for mid-sized vehicles that require a high-quality, maintenance-free power source. With its L2 form factor, durable construction, and superior starting power, it’s an excellent fit for drivers who expect long-term performance and dependability from their vehicle’s battery.

Specifications

Battery specification
Brand	Bosch
Series	S5
Model	S50 05
Battery technology	standard
Capacity	63 Ah
CCA (Cold Cranking Amps)	610 A
Length	242 mm
Width	175 mm
Height	190 mm
Battery layout	0 – positive on the right side
Terminal types	1
Base hold-down	B13

Similar batteries

Battery model	Capacity	CCA	Dimensions	Base hold-down
Bosch S3 S30 05	56 Ah	480 A	242x175x190 mm	B13
Bosch S4 S40 05	60 Ah	540 A	242x175x190 mm	B13
Bosch S5 S50 05	63 Ah	610 A	242x175x190 mm	B13
Exide Classic EC550	55 Ah	460 A	242x175x190 mm	B13
Exide Excell EB620	62 Ah	540 A	242x175x190 mm	B13
Exide Premium EA640	64 Ah	640 A	242x175x190 mm	B13
Halfords Essentials HB 027	56 Ah	480 A	242x175x190 mm	B13
Halfords Standard HCB 027	62 Ah	550 A	242x175x190 mm	B13
Lucas Premium LP027	60 Ah	540 A	243x175x190 mm	B13
Lucas Supreme LS027	65 Ah	640 A	242x175x190 mm	B13
Varta Black Dynamic C14	56 Ah	480 A	242x175x190 mm	B13
Varta Blue Dynamic D24	60 Ah	540 A	242x175x190 mm	B13
Varta Silver Dynamic D15	63 Ah	610 A	242x175x190 mm	B13

The Bosch S50 05 is a high-performance battery from the S5 series, offering dependable power for a variety of vehicles. As a standard lead-acid battery, it is engineered to deliver reliable starting power and consistent performance, making it ideal for cars without Start-Stop systems.

With a capacity of 63 Ah and a cold cranking amperage (CCA) of 610 A, the Bosch S50 05 ensures sufficient power for starting the engine even in challenging conditions, such as low temperatures. Its compact dimensions (242 mm in length, 175 mm in width, and 190 mm in height) and standardized B13 base hold-down make it compatible with many vehicle types. The 0-terminal layout, with the positive terminal on the right side, and type 1 connectors ensure straightforward installation.

This battery is designed for drivers who prioritize reliability and ease of maintenance. While it doesn’t feature advanced technologies like AGM or EFB, it compensates with robust construction and consistent performance, particularly for standard vehicles.

When compared to similar batteries, such as the Varta Silver Dynamic D15 or Exide Premium EA640, the Bosch S50 05 holds its own by offering a balanced combination of capacity, starting power, and price. Its slightly higher CCA compared to some competitors, such as the Bosch S4 S40 05 (540 A), makes it a strong contender for drivers needing a bit more power in demanding conditions.

In summary, the Bosch S50 05 is a dependable, versatile battery suitable for a range of vehicles. Whether you’re replacing an old battery or upgrading to one with a bit more power, this model offers excellent value for its specifications and the trusted Bosch brand reliability.