Motorcycle batteries must withstand constant vibration, frequent cold starts, and the demands of modern electrical systems conditions that standard lead-acid units struggle to meet reliably. The Bosch S5A AGM FA108 is a sealed, absorbent glass mat battery engineered specifically for motorcycles, scooters, and powersports applications where consistent cranking performance and resistance to deep discharge are non-negotiable.
Manufactured in Europe, this battery arrives sealed, factory activated, filled with electrolyte, and fully charged ready for immediate fitment without pre-conditioning. Bosch's AGM construction immobilises the electrolyte within glass mat separators, eliminating acid stratification and significantly improving resilience to the deep discharge cycles typical of short urban trips and repeated engine starts, including start-stop applications where the technology supports it. Verify compatibility with the product label before installation.
The FA108 measures 150 mm 87 mm 93 mm (LWH) and delivers 12V with a 6Ah capacity (C20) and 100A cold cranking amps (EN). Weight is 2.28 kg. Polarity configuration should be confirmed on the product label prior to fitment. Cross-references: YTX7A-BS, YTX7A.
This battery is part of the Bosch S5A AGM range. Related variants within the range include FA100, FA101, FA102, FA103, FA104, FA105, FA106, FA107, FA109, and FA110 covering a broad spread of motorcycle and powersports fitments.
The FA108 is supplied with a 1-year warranty, providing assurance of build quality and 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 2.28 kg (5.0 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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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.