Bosch S5A05 12V 60Ah 680A Start-Stop Car Battery (Type 027)

Bosch S5A05 Start-Stop 12V 60Ah 680A AGM Car Battery – Type 027

The Bosch S5A05 is a premium 12V 60Ah AGM (Absorbent Glass Mat) Start-Stop battery designed for modern vehicles with advanced Start/Stop systems, regenerative braking and high electrical demands. Delivering a powerful 680A Cold Cranking Amps (CCA), the S5A05 provides dependable starting performance together with the enhanced cyclic durability required by vehicles that repeatedly stop and restart the engine during everyday driving.

Part of the Bosch S5 AGM range, the S5A05 uses advanced AGM technology in which the electrolyte is absorbed within glass-fibre separators. This provides excellent charge acceptance, high cycling capability and dependable performance under demanding operating conditions. Its popular Type 027 / L2 case size measures approximately 242 × 175 × 190mm, making it suitable for a wide range of modern Start/Stop vehicles requiring this specification.

Key Features

• 60Ah Capacity: Provides reliable stored energy for engine starting and demanding onboard electrical systems.
• 680A Cold Cranking Performance: Delivers powerful starting capability for compatible petrol and diesel engines, including during colder weather conditions.
• AGM Technology: Absorbent Glass Mat construction provides excellent cycling performance, charge acceptance and durability.
• Start-Stop Compatible: Designed for modern vehicles with frequent automatic engine stop and restart cycles.
• Suitable for Advanced Start-Stop Systems: Designed to meet the increased demands of vehicles with sophisticated energy-management systems.
• Excellent Cycling Capability: AGM construction is designed to withstand repeated discharge and recharge cycles far more effectively than a conventional starter battery.
• High Charge Acceptance: Capable of efficiently accepting energy from modern charging systems and regenerative braking applications.
• Supports High Electrical Loads: Well suited to vehicles equipped with numerous comfort, safety, entertainment and driver-assistance systems.
• Maintenance-Free: Sealed construction eliminates the need for routine electrolyte topping-up during normal service.
• Popular Type 027 Fitment: Uses a widely specified European battery footprint found in many modern passenger vehicles.
• Standard European Terminals: Features standard automotive terminals for compatible vehicle connections.
• Positive Terminal on Right: Standard layout 0 configuration when viewed with the terminals closest to you.
• B13 Base Hold-Down: Standard European base fixing provides secure installation in compatible battery trays.
• Ready to Fit: Supplied charged and ready for installation into a compatible vehicle.

Ideal Applications

• Start-Stop vehicles
• Vehicles originally fitted with an AGM battery
• Modern petrol vehicles
• Modern diesel vehicles
• Vehicles with regenerative braking
• Vehicles with advanced energy-management systems
• Vehicles with high electrical demands
• Hatchbacks, saloons and estates
• Compact MPVs and SUVs where specified
• Vehicles requiring a Type 027 AGM battery

Technical Specifications

• Brand: Bosch
• Range: Bosch S5 AGM
• Model: S5 A05 / S5A05
• Bosch Part Number: 0 092 S5A 050
• Battery Technology: AGM – Absorbent Glass Mat
• UK Battery Type: Type 027
• DIN / ISO Case Size: L2 / LN2
• Nominal Voltage: 12V
• Capacity: 60Ah
• Cold Cranking Amps: 680A (EN)
• Length: 242mm
• Width: 175mm
• Height: 190mm
• Terminal Type: Type 1 Standard Automotive Terminals
• Terminal Layout: 0 – Positive Terminal on Right
• Base Hold-Down: B13
• Maintenance: Maintenance-Free
• Primary Function: Engine Starting / Start-Stop Operation
• Start-Stop Compatibility: Yes

AGM Start-Stop Technology

AGM (Absorbent Glass Mat) batteries are specifically engineered for vehicles placing significantly greater demands on the starter battery than a conventional starting system. The electrolyte is held within highly absorbent glass-fibre separators, helping provide excellent charge acceptance, cycling durability and dependable power delivery.

In an advanced Start/Stop vehicle, the engine may switch off whenever the vehicle comes to a stop while electrical systems such as lighting, climate control, infotainment and safety equipment continue drawing power. The battery must then restart the engine repeatedly throughout the journey. The Bosch S5A05 is designed to withstand these demanding operating conditions while continuing to provide reliable starting performance.

Type 027 Fitment

The Bosch S5A05 uses the popular Type 027 / L2 format measuring approximately 242 × 175 × 190mm. Although conventional flooded and EFB batteries can also be available in a similar physical footprint, matching the dimensions alone is not sufficient. The battery technology specified by the vehicle manufacturer must also be taken into account.

Important AGM Replacement Information

If your vehicle was originally equipped with an AGM battery, the replacement should also be an AGM battery of an appropriate specification. An AGM battery should not normally be downgraded to an EFB or conventional flooded battery, even where the physical dimensions are identical, as these technologies may not provide the cycling performance required by the vehicle.

Many modern vehicles fitted with AGM batteries also use a Battery Management System (BMS). Following replacement, the new battery may need to be registered or coded to the vehicle so the charging system can correctly manage the new battery. Always check the vehicle manufacturer's requirements before installation.

Why Choose the Bosch S5A05 AGM Car Battery?

The Bosch S5A05 60Ah 680A AGM Start-Stop Battery combines powerful starting performance with the advanced cycling capability required by modern vehicles. Its AGM construction, high charge acceptance and ability to support demanding electrical systems make it an excellent replacement for vehicles originally equipped with a Type 027 AGM battery. For vehicles with advanced Start/Stop technology, regenerative braking or substantial onboard electrical equipment, the S5A05 provides the durability and dependable power expected from Bosch's premium S5 AGM range.