VOTRONIC VCC 1212-30 CI – 12 V / 30 A Charging Booster
The VOTRONIC VCC 1212-30 CI is a high-performance 12 V to 12 V charge booster designed to optimally charge the vehicle battery while driving. It delivers a charging current of up to 30 A and is suitable for both traditional lead-acid batteries and LiFePO4 batteries.
Especially in modern Euro 6 vehicles with an intelligently controlled alternator, the charge booster ensures reliable and constant charging. Voltage fluctuations from the alternator as well as voltage losses over longer cable runs are compensated for.
Thanks to various charging curves, the onboard battery is charged quickly, gently, and fully.
Advantages
- Up to 30 A charging current
- Suitable for LiFePO4, AGM, gel, and lead-acid
- Ideal for vehicles with Euro 6 alternators
- Microprocessor-controlled, fully automatic charging
- Compensates for voltage fluctuations and line losses
- Automatic activation via D+, ignition, or voltage-controlled
- Temperature monitoring of the onboard battery
- LiFePO4 protection at low temperatures
- Charge maintenance for the starter battery when the onboard battery is being charged externally
- Suitable for use with EBL / EVS power modules
- Parallel operation with a solar system and grid charger is possible
- Compact and lightweight design
Suitable for LiFePO4
The VCC 1212-30 CI features special charging programs for 12-V LiFePO4 batteries. Together with the included temperature sensor, the battery temperature is monitored and the charge is adjusted accordingly.
This makes the charge booster ideal for converting RVs and campers from lead-acid to LiFePO4 batteries.
Ideal for modern vehicles
In modern vehicles, the alternator’s voltage is regulated based on operating conditions and is sometimes significantly reduced. As a result, a conventional isolator relay often cannot reliably charge the service battery.
The VCC 1212-30 CI generates a charging voltage suitable for the onboard battery, thereby enabling reliable charging while driving.
Technical Specifications
| Feature | Value |
| Manufacturer | VOTRONIC |
| Model | VCC 1212-30 CI |
| Manufacturer Part No. | 3360 |
| Input | 12 V |
| Output | 12 V |
| Max. charging current | 30 A |
| Adjustable current limit | 20 A / 30 A |
| Input voltage range | 10.5–16.5 V |
| Recommended onboard battery capacity | 60–200 Ah |
| Maximum onboard battery capacity | up to 260 Ah |
| Battery types | LiFePO4, AGM, gel, lead-acid |
| Galvanic isolation | No |
| Charge retention for starter battery | 0–1 A |
| Battery connection | 4–16 mm² |
| Control connections | 0.5–2.5 mm² |
| Weight | approx. 280 g |
| CI-Bus | Yes |
Package Contents
- VOTRONIC VCC 1212-30 CI Charge Booster
- Temperature sensor
- User Manual
Typical Applications
Ideal for campers, RVs, expedition vehicles, vans, boats, and specialty vehicles where the onboard battery needs to be reliably charged via the starter battery or alternator while driving.
Highly recommended for conversions to LiFePO4 batteries and for vehicles with an intelligent alternator.


