1. Introducció
This manual provides essential information for the safe and effective use of your BOSCH FA104 (YTX12-BS) Factory Activated AGM battery. This battery is designed for a wide range of applications including motorcycles, scooters, quads, snowmobiles, and jet skis, offering reliable performance even in extreme conditions.
The FA104 battery features advanced AGM (Absorbent Glass Mat) technology, ensuring a powerful and dynamic start. It is 100% maintenance-free, meaning no need for electrolyte checks or refilling. Its low self-discharge rate contributes to a 20% longer lifespan compared to conventional starter batteries. The robust design provides excellent resistance to vibrations, making it ideal for motor sports and off-road use. Furthermore, AGM technology offers superior resistance to discharge and enhanced cold-starting performance in low temperatures.

Imatge: Frontal view of the Bosch FA104 Factory Activated AGM battery, showing the Bosch logo and model number.
2. Especificacions
| Característica | Especificació |
|---|---|
| Nom del model | FA104 (YTX12-BS) |
| Tipus de bateria | Factory Activated AGM (Absorbent Glass Mat) |
| Voltage | 12 V |
| Capacitat | 10 Ah |
| Arrencada en fred Amps (CCA) | 180A (-18°C) |
| Longitud de l'element | 150 mm |
| Amplada de l'element | 87 mm |
| Alçada de l'element | 130 mm |
| Pes de l'article | 3.86 kg |
| Origen | Espanya |

Image: Technical drawing showing the dimensions (150mm length, 87mm width, 130mm height) of the Bosch FA104 battery.
3. Informació de seguretat
WARNING: Batteries contain sulfuric acid and produce explosive gases. Improper handling can cause severe injury or death.
- Always wear appropriate eye protection and protective clothing when handling batteries.
- Mantingueu les piles fora de l'abast dels nens.
- Do not smoke or allow open flames or sparks near the battery.
- Assegureu-vos que hi hagi una ventilació adequada quan carregueu o treballeu amb bateries.
- Eviteu el contacte amb l'àcid de la bateria. En cas de contacte, renteu immediatament amb aigua i consulteu un metge.
- Do not dispose of batteries with household waste. Batteries contain lead (Pb) and must be recycled properly. Follow local regulations for battery disposal.
- No curtcircuiteu mai els terminals de la bateria.

Imatge: Part posterior view of the Bosch FA104 battery displaying universal safety symbols, including warnings for corrosive material, explosive gases, eye protection, keeping out of reach of children, and proper disposal (crossed-out wheelie bin with Pb symbol).
4. Configuració i instal·lació
The BOSCH FA104 is a Factory Activated AGM battery and is ready for use upon installation. No initial acid filling or charging is typically required.
- Preparació: Ensure your vehicle's ignition is off and all electrical accessories are disconnected.
- Treure la bateria antiga: Disconnect the negative (-) terminal first, then the positive (+) terminal. Carefully remove the old battery from its compartment.
- Inspeccioneu el compartiment de la bateria: Clean the battery tray and terminals of any corrosion or debris. Ensure the compartment is dry and free of foreign objects.
- Position New Battery: Carefully place the BOSCH FA104 battery into the battery compartment, ensuring it fits securely.
- Connectar els terminals: Connect the positive (+) terminal first, then the negative (-) terminal. Ensure all connections are tight and secure. Do not overtighten.
- Bateria segura: Use the vehicle's battery hold-down clamp or strap to secure the battery firmly in place. This prevents movement and potential damage from vibrations.
- Comprovació final: Double-check all connections and ensure no tools or foreign objects are left in the battery compartment.
After installation, your vehicle should be ready to start. If you encounter any issues, refer to the Troubleshooting section.
5. Funcionament
Once installed, the BOSCH FA104 battery will provide reliable power for starting your vehicle and operating its electrical systems. Its AGM technology ensures consistent performance, especially under demanding conditions such as those found in motor sports or extreme weather.
- The battery is designed for optimal performance in a wide range of temperatures.
- Its vibration-resistant construction makes it suitable for rough terrain and high-performance applications.
- The low self-discharge rate means it retains charge longer when not in use, reducing the need for frequent recharging during periods of inactivity.
6. Manteniment
The BOSCH FA104 is a 100% maintenance-free battery, which means you do not need to check or add water (electrolyte) during its lifespan.
- Neteja de terminals: Periodically inspect battery terminals for corrosion. If corrosion is present, clean it with a wire brush and a mixture of baking soda and water. Rinse with clean water and dry thoroughly.
- Estanquitat del terminal: Ensure battery cable connections remain tight. Loose connections can lead to poor performance and potential damage.
- Càrrega: If the vehicle is stored for extended periods (e.g., off-season), it is recommended to use a suitable battery maintainer or trickle charger to keep the battery fully charged. This prevents deep discharge and prolongs battery life. Use a charger specifically designed for AGM batteries.
- Emmagatzematge: Store the battery in a cool, dry place if removed from the vehicle. Ensure it is fully charged before storage and periodically check its voltage.
7. Solució De Problemes
Si teniu problemes amb la bateria, tingueu en compte els següents problemes i solucions habituals:
- Vehicle Won't Start / Weak Cranking:
- Check battery terminal connections for tightness and corrosion.
- Ensure the battery is fully charged. A weak battery may need recharging.
- Have your vehicle's charging system (alternator, voltage regulator) checked by a professional.
- La bateria no manté la càrrega:
- Verify that there are no parasitic drains on the vehicle's electrical system (e.g., lights left on, faulty accessories).
- Assegureu-vos que el sistema de càrrega funciona correctament.
- The battery may be at the end of its service life and require replacement.
- Corrosion on Terminals:
- Clean terminals as described in the Maintenance section. Ensure connections are tight after cleaning.
For persistent issues, consult a qualified mechanic or contact Bosch customer support.
8. Consells d'usuari
- Ús habitual: For optimal battery health, try to use your vehicle regularly. Frequent short trips may not fully recharge the battery.
- Càrrega adequada: When charging, always use a charger compatible with AGM batteries to avoid damage.
- Rendiment en temps fred: While AGM batteries perform well in cold, extreme cold can still reduce capacity. Keep the battery fully charged during winter months.
- Compatibilitat de vehicles: Always ensure the battery's specifications (voltage, capacity, CCA, and physical dimensions) match your vehicle's requirements before purchase and installation.
9. Garantia i Suport
For warranty information, claims, or technical support regarding your BOSCH FA104 battery, please refer to the warranty documentation provided at the time of purchase or contact the seller directly. Ensure you retain your proof of purchase for any warranty-related inquiries.
For general product information or to locate authorized service centers, you may also visit the official Bosch weblloc o poseu-vos en contacte amb el seu departament d'atenció al client.