VOTRONIC VCC 1212-45 IUoU-Li Isolated 12V 45A B2B Charger

1. Introduktion

The VOTRONIC VCC 1212-45 is an isolated B2B (Battery-to-Battery) charge booster designed for universal use. It ensures optimal and rapid charging of your leisure battery from the alternator while driving. This device supports various battery technologies, including classic lead-acid, lead-gel, lead-AGM, and modern LiFePO4 lithium batteries, offering selectable charging programs for unsupervised, fast, and gentle full charging from any state of charge.

Unlike simple cut-off relays, the VCC 1212-45 increases the charging voltage to the precise level required by each battery type, as specified by manufacturers, ensuring a complete charge. It effectively compensates for long charging cable losses and alternator voltage fluctuations, common in modern vehicles (e.g., Euro 6 with intelligent alternators). The intelligent microprocessor-controlled charging with IU1oU2oU3 characteristic curves and dynamic charging time calculation guarantees a quick, gentle, and full charge, maintaining the charge of connected batteries while simultaneously supplying power to 12V consumers.

2. Sikkerhedsinstruktioner

• Read this manual completely before installation and operation.
• Installation must be performed by qualified personnel in accordance with all applicable safety standards and regulations.
• Ensure all connections are secure and correctly polarized to prevent damage to the device or batteries.
• Afbryd altid strømforsyningen, før du udfører installation, vedligeholdelse eller fejlfinding.
• Åbn ikke enheden casing. Der er ingen dele indeni, som kan serviceres af brugeren.
• Hold enheden væk fra fugt, ekstreme temperaturer og brandfarlige materialer.
• Sørg for tilstrækkelig ventilation omkring opladeren for at forhindre overophedning.
• Use appropriate fuses as specified in the wiring diagram to protect the cables and the device.

3. Opsætning og installation

3.1. Fysisk installation

The VCC 1212-45 features a compact design and low weight due to high-frequency switching technology. Mount the unit in a dry, well-ventilated area, ensuring the rubber feet for vibration reduction are not removed. These feet are crucial for the device's longevity and performance.

3.2. Ledningsdiagram

Refer to the diagram below for correct wiring. All fuses should be connected as directly as possible to the batteries for optimal cable protection.

Figure 1: General Connection Diagram for Votronic VCC 1212-45 Charger

• Battery II IN (Start): Connects to the Start Battery.
• Battery I OUT (Leisure): Connects to the Leisure Battery.
• D+ or Terminal 15: This signal must be connected for the charger to activate.
• Sense In + (Start) / Terminal 15/D+: Connect these small wires (0.5-1.5 mm²) to the respective terminals. Strip cable ends by 10 mm.
• Sense Out + (Leisure): Connect this small wire (0.5-1.5 mm²) to the leisure battery positive terminal. Strip cable ends by 10 mm.
• Sikringer:
• Fuse II (Start Battery): 30 A - 80 A.
• Fuse I (Leisure Battery): 30 A / 50 A.
• Small Fuses: 3 A for sense lines.
• Chassis jord: Connect both start and leisure batteries to chassis ground.
• Input/Output Voltage: The charger supports 12V input to 12V output, or 24V input to 12V output.

3.3. Valg af batteritype

Brug Slide switch Battery-Type on the unit to select the appropriate charging program for your leisure battery (Lead-Acid, Lead-Gel, Lead-AGM, or LiFePO4). Refer to the device's labeling for specific switch positions.

3.4. Tilslutning af temperaturføler

Connect the supplied temperature sensor to the designated port on the charger. For LiFePO4 batteries, mount the temperature sensor on the negative terminal of the battery. This allows for automatic adaptation of charging voltage to battery temperature, optimizing charging efficiency and preventing unnecessary gassing in lead batteries, and protecting LiFePO4 batteries at low temperatures (below 0°C).

4. Betjening

4.1. Automatisk drift

The VCC 1212-45 operates fully automatically. Once connected, the device is activated by the alternator when the vehicle engine is running. When the engine is off, the batteries are not discharged. The charger continuously charges or maintains the battery even with simultaneous consumption, with charging times automatically calculated and monitored by the device.

4.2. Charging Characteristics

• Voltage forordning: Opladningsvolumentage is free of spikes and regulated to prevent battery overcharging.
• Line Loss Compensation: The device fully compensates for line losses and alternator voltage fluctuations, ensuring stable charging.
• 12V Consumer Protection: Connected 12V consumers are protected against overvoltages og bindtage udsving.
• Deeply Discharged Lead Batteries: Supports gentle pre-charging of deeply discharged lead batteries up to 8V, then provides powerful support even with active consumers.

4.3. Beskyttelsesfunktioner

The VCC 1212-45 offers multiple protections for unsupervised charging:

• Overbelastningsbeskyttelse
• Overophedningsbeskyttelse
• Overvoltage beskyttelse
• Kortslutningsbeskyttelse
• Incorrect behavior protection
• Battery discharge protection (electronic regulation up to complete separation of the device and battery)

Parallel operation with other charging sources on a single battery is possible without issues.

5. Vedligeholdelse

The VOTRONIC VCC 1212-45 charger is designed for maintenance-free operation. To ensure optimal performance and longevity, consider the following:

• Regelmæssig inspektion: Periodically check all cable connections for tightness and corrosion. Ensure fuses are intact.
• Rensning: Keep the device clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquid cleaners or solvents.
• Ventilation: Ensure that the ventilation openings are not obstructed to allow for proper heat dissipation.
• Miljøforhold: Operate the device within its specified temperature and humidity ranges.

6. Fejlfinding

If the charger is not functioning as expected, perform the following basic checks before contacting support:

If the problem persists after performing these checks, please contact VOTRONIC customer support.

7. Specifikationer

8. Garantioplysninger

VOTRONIC products are manufactured with high-quality materials and undergo strict quality control. This product comes with a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims.

The warranty does not cover damages resulting from improper installation, misuse, unauthorized modifications, accidents, or normal wear and tear. For detailed warranty terms and conditions, please refer to the official VOTRONIC webwebsted eller kontakt deres kundeservice.

9. Kundesupport

For technical assistance, troubleshooting, or warranty inquiries, please contact VOTRONIC customer support. You can typically find contact information, including phone numbers and email addresses, on the official VOTRONIC webhjemmeside eller gennem din autoriserede forhandler.

Når du kontakter support, bedes du have følgende oplysninger klar:

• Product Model: VCC 1212-45
• Købsdato
• Beskrivelse af problemet
• Any troubleshooting steps already performed