Last updated: May 22nd, 2026

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The Bosch S4 series represents a trusted and versatile range of car batteries engineered to provide consistent and reliable performance for a wide variety of passenger vehicles. Known for their robust construction and dependable starting power, S4 batteries strike an ideal balance between price, quality, and endurance. Designed with everyday driving in mind, they’re especially suitable for conventional vehicles without advanced energy systems like start-stop. Bosch incorporates high-quality materials and advanced production processes, resulting in batteries that deliver strong cold-start capability and long service life, even under challenging weather conditions or frequent short-distance driving.

The Bosch S40 00 is one of the more compact models within the S4 lineup, offering 44 Ah capacity and a maximum cold cranking amperage of 420 A. It’s a traditional lead-acid battery, perfect for small cars and vehicles with lower energy consumption. This battery delivers solid performance in standard driving conditions and is particularly suited for urban use, where frequent stops and starts are common but where start-stop systems are not utilized. As a standard lead-acid model, the S40 00 should not be used in vehicles equipped with start-stop technology; only EFB or AGM batteries are suitable for such applications.

With dimensions of 175 x 175 x 190 mm, the Bosch S40 00 fits the L0 size standard, which is a common European format for compact batteries. This format is especially common in smaller European and city cars, where space under the hood is limited. The battery features a terminal layout of 0 (positive terminal on the right) and standard round terminal posts (type 1). It is designed for mounting in B13-type battery trays, a standard European fitment that ensures compatibility with a wide range of vehicles from popular brands.

When compared to similar models on the market, the Bosch S40 00 stands out for its slightly higher starting power. For example, the Bosch S30 00 offers only 340 A, while Exide’s EC400 delivers just 320 A. Even the Exide EB440, which also provides 44 Ah, peaks at 400 A. Likewise, Lucas Premium LP202, Varta Black Dynamic A16, and Varta Blue Dynamic B36 range between 340 A and 420 A. The B36, like the Bosch S40 00, hits 420 A, but Bosch often edges ahead in long-term durability and brand reputation. This makes the S40 00 a reliable choice for drivers who want both consistent cold starts and peace of mind.

In addition to technical performance, Bosch batteries are widely appreciated for their availability across Europe, backed by a strong distribution and service network. This ensures easy replacements and dependable after-sales support. Whether you’re looking to replace a worn-out battery in a compact hatchback or you’re equipping a secondary city car, the S40 00 is a safe and efficient option.

In conclusion, the Bosch S40 00 is a compact yet powerful battery that brings the trusted Bosch quality to smaller vehicles. With dependable starting power, European-standard dimensions, and compatibility with common mounting systems, it delivers excellent value and reliability for everyday driving needs.

Specifications

Battery specification
Brand	Bosch
Series	S4
Model	S40 00
Battery technology	standard
Capacity	44 Ah
CCA (Cold Cranking Amps)	420 A
Length	175 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 00	40 Ah	340 A	175x175x190 mm	B13
Bosch S4 S40 00	44 Ah	420 A	175x175x190 mm	B13
Exide Classic EC400	40 Ah	320 A	175x175x190 mm	B13
Exide Excell EB440	44 Ah	400 A	175x175x190 mm	B13
Lucas Premium LP202	40 Ah	340 A	175x175x190 mm	B13
Varta Black Dynamic A16	40 Ah	340 A	175x175x190 mm	B13
Varta Blue Dynamic B36	44 Ah	420 A	175x175x190 mm	B13

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Frequently Asked Questions about the Bosch S40 00 car battery

What are the key specifications of the Bosch S4 S40 00 car battery?

The Bosch S4 S40 00 battery features a voltage of 12V, a capacity of 40Ah, and a cold cranking amperage (CCA) of 330A. Its dimensions are 187mm (length) x 127mm (width) x 227mm (height), making it suitable for a wide range of small cars and vehicles.

Which vehicles are compatible with the Bosch S4 S40 00 battery?

The Bosch S4 S40 00 battery is designed for small cars and vehicles that require a 12V battery with a capacity of 40Ah and a CCA of 330A. Always check your vehicle manufacturer’s requirements or consult a specialist to ensure compatibility before purchasing.

What are the main benefits of choosing the Bosch S4 S40 00 battery?

The Bosch S4 S40 00 battery offers reliable starting power, high performance, long service life, and enhanced safety features. It is maintenance-free and designed with advanced calcium technology to provide consistent power and resistance to corrosion.

Is the Bosch S4 S40 00 battery maintenance-free?

Yes, the Bosch S4 S40 00 battery is maintenance-free, meaning you do not need to top up the electrolyte levels. It is sealed and designed for hassle-free operation throughout its service life.

Does the Bosch S4 S40 00 battery come with a warranty?

Yes, the Bosch S4 S40 00 battery typically comes with a 4-year manufacturer’s warranty, offering peace of mind and protection against manufacturing defects.

How do I know if the Bosch S4 S40 00 is the right battery for my car?

You should check your vehicle owner’s manual for the recommended battery size, voltage, and capacity. The Bosch S4 S40 00 is suitable for vehicles needing a 12V, 40Ah battery with 330A CCA. If in doubt, consult a professional or use an online battery finder tool.

How should I dispose of my old battery when replacing it with the Bosch S4 S40 00?

Old car batteries should be recycled properly due to their hazardous contents. Most battery retailers and local recycling centers offer battery recycling services. Never dispose of batteries in household waste.

Can I install the Bosch S4 S40 00 battery myself?

Yes, if you are familiar with car maintenance and have the proper tools, you can install the Bosch S4 S40 00 battery yourself. Always follow safety procedures and refer to your vehicle’s manual. If unsure, seek professional installation to ensure correct fitment and operation.