Motorcycle batteries must endure high-vibration environments, frequent short-distance starts, and the demands of modern start-stop equipped machines conditions that rapidly degrade a conventional flooded cell. The Bosch S5A AGM Motorcycle Battery (FA127) is engineered to meet these challenges, offering absorbent glass mat technology in a sealed, factory-activated unit that is ready to install straight from the box.
Manufactured in Europe, the Bosch S5A AGM range uses glass mat separators to immobilise the electrolyte, eliminating acid spillage risk and enabling the battery to withstand the deep discharge and vibration cycles common in motorcycle and powersports applications. The sealed construction means no acid topping-up is required throughout the battery's service life.
The FA127 delivers 12V with 11Ah capacity (C20) and 210 CCA (EN), providing confident cold-start performance for a wide range of mid-capacity motorcycles. Physical dimensions are 150mm 88mm 110mm (L W H), and the unit weighs 3.81 kg. Terminal polarity must be confirmed by checking the product label prior to installation. This battery is a direct cross-reference replacement for the YTZ12S type. Start-stop compatibility is supported by the AGM technology; verify suitability against the product label.
The FA127 is one of ten variants in the Bosch S5A AGM motorcycle range, which spans multiple capacities and form factors. Other available SKUs include FA100 through to FA109, accommodating differing fitment requirements across the powersports sector.
This battery is supplied with a 1-year manufacturer warranty, providing assurance of reliable cranking and cycling performance under everyday operating conditions.
Standard delivery: 13 working days within UK mainland. 30-day returns.
Sealed factory activated battery: ready for use, filled with acid, fully charged in Europe Adapted to deep discharge and vibrations: as efficient for short distance trips with frequent starts as for motorsports and off-road applications Suitable for motorcycles (off-road and touring), enduros, scooters, quads, jet skis, snowmobiles and applications with many electrical consumers Installation angle: up to 30° thanks to AGM technology.
Key Feature:
- Backed by a 1 Year Warranty-year warranty for dependable service life and reliable performance under everyday driving conditions.
- Product Group: 2630, BOSCH MOTORCYCLE BATTERY, engineered to deliver consistent starting power and steady performance in demanding automotive applications.
- Engineered as a No 12.0 battery, ensuring consistent current flow, strong cranking power, and stable voltage delivery.
- Manufactured by Bosch, a German engineering leader delivering advanced technology and durable performance in modern vehicles. .
- Weighs 3.81 kg (8.4 lb), balancing high capacity with manageable handling for easy fitting and routine maintenance.
- OEM-style design ensures perfect terminal alignment, secure fitment, and support for both standard and start-stop vehicle systems.
Compatibility:
optimised for motorcycles and two-wheelers, ensuring consistent ignition power, rapid recharge capability, and stable energy supply for compact high-performance engines and accessory systems.
Uses:
- Restores dependable starting for vehicles that require consistent, everyday performance in regular driving conditions.
- Suited to No battery applications, delivering steady operation for vehicles with start-stop or accessory-heavy systems.
- Supports stable electrical output for ignition, lighting, infotainment, and critical onboard electronics in all environments.
- Performs reliably across short commutes and longer journeys where consistent restarts and electrical stability are essential.
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PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
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.