Last updated: June 15th, 2026

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The Bosch S4 series is a well-regarded line of automotive batteries known for their reliability, balanced performance, and solid cold-cranking power. Designed for a broad range of vehicles without start-stop technology, the S4 series offers dependable energy supply and long service life, even in demanding weather or urban driving conditions. Manufactured using Bosch’s advanced grid technology and high-purity materials, these batteries are maintenance-free and deliver excellent resistance to deep discharge. Drivers looking for a good balance between price and performance often find the S4 series to be an ideal solution for everyday driving needs.

The Bosch S40 02 is a mid-range battery within the S4 lineup, offering a capacity of 52 Ah and a cold cranking current of 470 A, making it suitable for small to medium-sized petrol vehicles without extensive electrical equipment. This battery is a standard flooded lead-acid battery, which means it’s not designed for vehicles with start-stop systems—those require EFB or AGM technologies. The S40 02 is ideal for conventional vehicles used for daily commuting, light-duty use, and regular road conditions. It’s built to provide reliable starts, even during colder months, and supports the vehicle’s basic electronics consistently.

With dimensions of 207 mm in length, 175 mm in width, and 190 mm in height, the Bosch S40 02 fits the L1 size standard, one of the most commonly used battery sizes in Europe. This format is widely accepted across many European and Japanese vehicles and is considered a standard height design—unlike Asian batteries, which are often taller and narrower. The battery uses the B13 base hold-down system, ensuring a secure fit in many standard battery trays. Its terminal layout is 0 (positive on the right), and it features standard round terminal posts (type 1), ensuring compatibility with most mainstream vehicles.

When compared with similar batteries from other manufacturers, the Bosch S40 02 stands out for its solid balance of power and durability. For example, the Varta Blue Dynamic C22 offers the same 52 Ah and 470 A, making it a near-identical competitor. Bosch, however, is often chosen for its slightly superior resistance to corrosion and long-term performance. Other models like the Exide EB500 (50 Ah / 450 A) or Halfords HCB 012 (52 Ah / 450 A) deliver slightly less starting power. Even Exide’s premium-level EA530, while offering 53 Ah and 540 A, is often a more expensive option. Meanwhile, Bosch’s own higher-tier model, the S50 02, offers 54 Ah and 530 A for users who demand more performance.

In addition, the S40 02 is frequently praised for its accessibility, with widespread availability in Europe, and is supported by Bosch’s extensive warranty and service network. This makes it a smart choice for motorists looking for an affordable, no-fuss battery with strong cold-start capabilities and proven engineering.

In conclusion, the Bosch S40 02 is a well-rounded, mid-capacity battery that offers strong starting power, reliable daily performance, and fits most small to mid-size cars that don’t use start-stop systems. Its standard European size and widely compatible design make it an easy replacement for many OEM batteries, ensuring hassle-free installation and dependable operation throughout the year.

Specifications

Battery specification
Brand	Bosch
Series	S4
Model	S40 02
Battery technology	standard
Capacity	52 Ah
CCA (Cold Cranking Amps)	470 A
Length	207 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 02	45 Ah	400 A	207x175x190 mm	B13
Bosch S4 S40 02	52 Ah	470 A	207x175x190 mm	B13
Bosch S5 S50 02	54 Ah	530 A	207x175x190 mm	B13
Exide Classic EC440	44 Ah	360 A	207x175x190 mm	B13
Exide Excell EB500	50 Ah	450 A	207x175x190 mm	B13
Exide Premium EA530	53 Ah	540 A	207x175x190 mm	B13
Halfords Standard HCB 012	52 Ah	450 A	207x175x190 mm	B13
Lucas Premium LP012	45 Ah	390 A	210x175x190 mm	B13
Lucas Premium LP079	50 Ah	420 A	210x175x190 mm	B13
Lucas Supreme LS012	58 Ah	520 A	210x175x190 mm	B13
Varta Black Dynamic B19	45 Ah	400 A	207x175x190 mm	B13
Varta Blue Dynamic C22	52 Ah	470 A	207x175x190 mm	B13
Varta Silver Dynamic C30	54 Ah	530 A	207x175x190 mm	B13

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Frequently Asked Questions about the Bosch S40 02 car battery

What are the main specifications of the Bosch S4 S40 02 car battery?

The Bosch S4 S40 02 is a 12V car battery with a capacity of 44Ah and a cold cranking amperage (CCA) of 420A. Its dimensions are approximately 207mm (length) x 175mm (width) x 175mm (height), and it features a standard terminal layout with terminal type 1 and base hold-down B13.

Which vehicles are compatible with the Bosch S4 S40 02 battery?

The Bosch S4 S40 02 battery is compatible with a wide range of small cars and compact vehicles, including selected models from brands like Ford, Fiat, Peugeot, Renault, and Citroën. Always check your vehicle’s manual or use a battery compatibility checker to ensure proper fitment.

What are the benefits of choosing the Bosch S4 S40 02 battery?

The Bosch S4 S40 02 battery offers reliable starting power, long service life, and maintenance-free operation thanks to its advanced calcium-silver technology. It is designed to provide consistent performance, improved safety features, and resistance to corrosion and vibration.

Is the Bosch S4 S40 02 battery maintenance-free?

Yes, the Bosch S4 S40 02 battery is maintenance-free, meaning it does not require topping up with distilled water. Its sealed design ensures hassle-free operation and enhanced durability.

Does the Bosch S4 S40 02 battery come with a warranty?

Yes, the Bosch S4 S40 02 battery typically comes with a 4-year warranty, offering peace of mind and protection against manufacturing defects. Always verify warranty details at the time of purchase.

How do I know if the Bosch S4 S40 02 is the right battery for my car?

You should check your vehicle’s owner’s manual for the required battery specifications and compare them with the Bosch S4 S40 02’s specs. Alternatively, you can use online battery lookup tools or consult with a professional to ensure compatibility.

How should I dispose of my old car battery when replacing it with a Bosch S4 S40 02?

Old car batteries should be disposed of responsibly at a certified recycling center or through your battery retailer. Many retailers offer free battery recycling when you purchase a new battery like the Bosch S4 S40 02.

Can the Bosch S4 S40 02 battery be used for start-stop vehicles?

No, the Bosch S4 S40 02 is not designed for vehicles with start-stop technology. For such vehicles, an AGM or EFB battery specifically designed for start-stop systems is recommended.