Vehicles equipped with start-stop systems place significantly greater demand on the battery than conventional applications, requiring a unit capable of withstanding repeated deep discharge and rapid recharge cycles. The Bosch S4E EFB (Enhanced Flooded Battery) 12V 95Ah Type 019 is engineered specifically to meet these demands, delivering dependable cranking performance and sustained cycle stability in passenger cars with active energy management systems.
Bosch's EFB technology reinforces the positive plate with a polyester scrim, increasing active material retention and dramatically improving charge acceptance compared with standard flooded batteries. This construction allows the S4E13 to sustain a higher number of partial-state-of-charge cycles, making it well suited to vehicles where the alternator charges opportunistically during deceleration or braking. The 850A cold cranking amps (EN) rating ensures a reliable start even under high electrical load conditions.
The S4E13 measures 353mm × 175mm – 190mm (L × W × H) and weighs 24.98kg. It features Terminal Type 1 (standard post), positive polarity code 0 (positive terminal to the right), and Hold-Down Type B13. It is cross-referenced as Type 019 EFB, fitting a wide range of European passenger cars. Buyers should verify fitment against vehicle manufacturer specifications before ordering.
This battery is available in additional capacities and fitments across the Bosch S4E EFB range, including S4E08, S4E10, S4E11, S4E41, and S4E42, as well as related Bosch EFB options LE002, L4034, and L4027.
The S4E13 is backed by a 3-year warranty, providing assurance of build quality and long-term reliability for commercial and private fleet operators alike.
Standard delivery: 1–3 working days within UK mainland. 30-day returns.
The Bosch S4 battery with EFB technology is tailored to the requirements of passenger cars with start/stop systems. It ensures a safe start - even when many electrical consumers in the vehicle are in operation. EFB technology (Enhanced Flooded Battery): Positive plate coated with polyester scrim provides additional support for the active material and high cycle stability. Longer life and twice the cycle life of conventional starter batteries. Safe starting even at extreme temperatures and high number of electrical loads. Particularly good charge absorption and high short-distance resistance. Absolutely maintenance-free and leak-proof.
Key Feature:
- Backed by 3-year warranty for reliable use and dependable performance.
- Product Group: 2604, BOSCH S4E EFB CAR BATTERY, purpose-built for dependable performance in the intended application.
- Engineered as a EFB Battery, delivering consistent, reliable operation in daily use.
- Manufactured by Bosch, a trusted name in automotive batteries, known for dependable quality.
- Weighs 25.0 kg (55.1 lb) balancing power and manageability for easier installation and handling.
- OEM-style fitment supports straightforward replacement and proper mounting.
- 12V system compatible with standard vehicle electrical requirements.
- Start stop suitable - Yes. Fitment to a Start stop vehicle is supported when matched to the correct specification.
Compatibility:
Suited for passenger cars, balancing reliable cold-cranking performance with long service life for daily use.
Uses:
- Restores dependable starting for vehicles that need consistent, everyday performance.
- Suited to EFB Battery applications, delivering steady operation in daily driving conditions.
- Supports stable power delivery for ignition, lighting, and onboard electronics.
- Performs reliably across short trips and longer runs where dependable restarts are essential.
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Fitment Warning:
You must check your current battery against the specifications of this battery before ordering to ensure that this is the correct battery for your vehicle. Check battery technology, dimensions, terminal type, polarity, capacity (AH) and cranking performance (CCA). We cannot guarantee correct fitment under any circumstances.