1. Introducció
This manual provides essential instructions for the safe and effective operation of your OSRAM BATTERYcharge 405 ESSENTIAL Smart Battery Charger & Maintainer. Please read this manual thoroughly before use and retain it for future reference. This device is designed to charge and maintain 6V and 12V vehicle batteries, including those found in motorcycles and most small vehicles.
2. Informació important de seguretat
Observeu sempre les següents precaucions de seguretat per evitar lesions o danys al dispositiu o al vehicle:
- Ventilació: Assegureu-vos que hi hagi una ventilació adequada durant la càrrega de bateries per evitar l'acumulació de gasos explosius.
- Connexió correcta: Connecteu el positiu vermell (+) clamp to the positive (+) battery terminal and the black negative (-) clamp to the negative (-) battery terminal. The charger features reverse polarity protection.
- Eviteu curtcircuits: No permeteu que la bateria clamps to touch each other or any uninsulated metal parts of the vehicle.
- Protecció contra la humitat: Do not expose the charger to rain, snow, or excessive moisture. It is designed for indoor use or in a protected environment.
- Nens i ús no autoritzat: Keep the charger out of reach of children. This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities unless supervised.
- Procediment de desconnexió: Always disconnect the charger from the mains power supply before making or breaking connections to the battery.
- Equipament danyat: Do not operate the charger if it has been dropped, damaged, or if the cables or clamps are compromised. Contact customer support for assistance.
3. Producte acabatview
3.1. Característiques
- Compatibilitat de la bateria: Suitable for a variety of 6V and 12V batteries, including Lithium, Lead-Acid, and AGM types.
- Start/Stop System: Compatible with vehicles equipped with Start/Stop technology.
- Interfície d'usuari: Compact design with single-button operation and a clear LCD display for charge progress and voltage estat.
- Longitud del cable: Total 3m cable length (1.5m power cable + 1.5m charging cable).
- Proteccions de seguretat: Equipped with intelligent protection against short-circuits, reverse polarity, overcharge, and overheating.
- Capacity & Current: Maximum battery capacity of 90Ah for charging and 140Ah for maintenance. Maximum charging current of 5A.
- Multi-Stage Càrrega: Features a 7-step charging cycle for Lithium batteries and a 9-step cycle for Lead-Acid/AGM batteries.
- Automatic Maintenance: Automatically enters a long-term maintenance mode once the battery is fully charged.
3.2. Components
The OSRAM BATTERYcharge 405 ESSENTIAL consists of the main charger unit, integrated power cable, and battery connection clamps.

Figure 1: OSRAM BATTERYcharge 405 ESSENTIAL Smart Battery Charger and Maintainer with its packaging and included battery clamps.

Figura 2: Primer pla view of the charger's LCD display, indicating battery voltage i estat de càrrega.
4. Configuració
Follow these steps to correctly connect the charger to your vehicle's battery:
- Preparar el vehicle: Ensure the vehicle's ignition is off and all electrical consumers (lights, radio, etc.) are switched off.
- Connect Positive Clamp: Connecteu el positiu vermell (+) clamp securely to the positive (+) terminal of the battery.
- Connect Negative Clamp: Connecteu el negatiu negre (-) clamp securely to the negative (-) terminal of the battery.
- Connexió a la xarxa elèctrica: Plug the charger's power cable into a suitable 230V AC mains power outlet.
- Encès: The charger will power on automatically and display the current battery voltage a la pantalla LCD.
5. Instruccions de funcionament
The OSRAM BATTERYcharge 405 ESSENTIAL is designed for ease of use with intelligent automatic functions.
5.1. Funcionament automàtic
- Upon connection to a battery and mains power, the charger automatically detects whether it is a 6V or 12V battery.
- It then initiates the appropriate multi-stage charging cycle: a 7-step cycle for Lithium batteries or a 9-step cycle for Lead-Acid/AGM batteries.
- The LCD display will show the charging progress and the current battery voltage.
5.2. Mode Selection (if applicable)
While the charger operates mostly automatically, a single button allows for cycling through specific modes if manual selection is desired for certain battery types or conditions. Refer to the icons on the LCD display to understand the active mode.
5.3. Maintenance Mode
Once the battery reaches full charge, the charger automatically transitions into a long-term maintenance mode. This prevents overcharging and keeps the battery in optimal condition, making it suitable for extended periods of connection.
5.4. Desconnexió
To safely disconnect the charger:
- Unplug the charger from the mains power outlet.
- Remove the black negative (-) clamp from the battery's negative (-) terminal.
- Traieu el positiu vermell (+) clamp from the battery's positive (+) terminal.
6. Manteniment
Proper maintenance ensures the longevity and reliable operation of your charger:
- Neteja: Keep the charger unit clean and dry. Wipe with a soft, damp drap si cal. No utilitzeu productes de neteja abrasius ni dissolvents.
- Inspecció: Regularly inspect the cables, clamps, and casing for any signs of damage, wear, or corrosion. Do not use the charger if any components are damaged.
- Emmagatzematge: Store the charger in a cool, dry place, away from direct sunlight, extreme temperatures, and corrosive materials. Ensure cables are neatly coiled to prevent damage.
7. Solució De Problemes
If you encounter issues with your OSRAM BATTERYcharge 405 ESSENTIAL, refer to the following common problems and solutions:
- El carregador no s'encén:
- Check that the power cable is securely plugged into a functional mains power outlet.
- Assegureu-vos que la bateria estigui ben carregadaamps are correctly connected to the battery terminals. - La bateria no es carrega:
- Verify that the battery clamps are securely attached to the correct battery terminals (positive to positive, negative to negative).
- The battery might be severely discharged or damaged beyond recovery. In such cases, the charger may not initiate charging.
- Ensure the selected mode (if manually overridden) is appropriate for the battery type. - Missatge d'error a la pantalla:
- If an error code or symbol appears, consult the full product manual for specific meanings. Common errors relate to incorrect battery connection (e.g., reverse polarity, which the device protects against) or an internal fault. Disconnect and reconnect the charger. If the error persists, contact customer support. - Charger feels hot during operation:
- Some heat generation is normal during the charging process. Ensure the charger has adequate ventilation and is not covered. If it becomes excessively hot, emits smoke, or unusual odors, immediately disconnect it from the mains and battery, then contact customer support.
8. Especificacions tècniques

Figure 3: Dimensions of the OSRAM BATTERYcharge 405 ESSENTIAL charger unit.
| Especificació | Valor |
|---|---|
| Fabricant | OSRAM |
| Model | BATTERYcharge 405 ESSENTIAL |
| Número de model | OEBCS405ESN |
| Pes de l'article | 400 g |
| Dimensions del producte (L x A x A) | 15.7 x 4.6 x 6.2 cm |
| Vol. De sortidatage | 6V / 12V (DC) |
| Màx. Corrent de càrrega | 5 A |
| Max. Battery Capacity (Charging) | 90 Ah |
| Max. Battery Capacity (Maintenance) | 140 Ah |
| Longitud del cable | 3 m (1.5m power + 1.5m charge) |
| Característiques de seguretat | Short-circuit protection, Reverse polarity protection, Overcharge protection, Overheating protection |
| Certificacions | CE |
9. Garantia i Suport
The OSRAM BATTERYcharge 405 ESSENTIAL comes with a Garantia OSRAM de 2 anys, ensuring quality and reliability. For technical support, warranty claims, or further assistance, please contact your local OSRAM customer service or visit the official OSRAM website. Please have your model number (OEBCS405ESN) and proof of purchase available when contacting support.





