Votronic Charging converter by Votronic

• High charging capacity even on short journeys or full charge on longer journeys.
• The voltage is brought to the required level (increased or decreased) in order to be able to precisely charge the on-board battery with the optimal charging characteristic.
• Compensates for line losses and voltage fluctuations in the alternator, such as occur continuously to a considerable extent in Euro 6 vehicles (intelligent alternators).
• Compact design, low weight (high-frequency switch mode technology) and powerfully dimensioned power components for safe operation.
• A significantly better energy balance of the on-board battery without intervention in the starting circuit
• If the 12 V consumers are supplied, they are protected against overvoltage and voltage fluctuations.
• Overcharging of the battery is impossible because the charging voltage is regulated in such a way that it is free of peaks
• Fully automatic operation: the device is constantly connected to the batteries and is automatically activated by the running alternator of the vehicle. The batteries are not discharged when the engine is not running.
• Parallel and buffer operation: If the battery is used at the same time, it continues to be charged or is kept full. The device automatically calculates and monitors the adjustment of the charging times.
• Monitoring-free charging: Multiple protection against overload, overheating, overvoltage, short circuit, malfunction and back-discharge of the battery through electronic regulation up to complete separation of device and battery.
• Built-in on-board network filter: Problem-free parallel operation with other charging sources (EBL, chargers, motor and fuel generators, solar systems) on one battery.
• Charging cable compensation: voltage losses on the charging cables are automatically compensated.
• Connection for battery temperature sensor (included in delivery): In the case of lead batteries (acid, gel, AGM), the charging voltage is automatically adjusted to the battery temperature, results in better full charging of the weaker battery in the cold, and in summer temperatures unnecessary battery gassing avoided.
• LiFePO4 batteries: battery protection at high and especially at low temperatures <0 ° C.
• Charging aid for deeply discharged lead batteries: Gentle pre-charging of the (lead-acid, gel, AGM) battery up to 8 V, then powerful support for the battery if consumers are still switched on.

Technical specifications
Input from vehicle starter battery "+ IN Start"
Vehicle starter battery nominal voltage 12 V.
Battery capacity (size), recommended at least 50 Ah
Input voltage range (EURO 6 +), D + controlled 10.5 - 16.5 V.
Input overvoltage shutdown (EURO 6 +), max. 16.5V
Power consumption max. 490 W
Current consumption (at lowest input voltage) max. 0.05 A - 39 A
Activation control input "D +", from D +, terminal 15, ignition 8 - 17 V.
Charge output on board supply battery "+ OUT board"
Charge / buffer / load current, regulated IU1oU2, lead, LiFePO 0 A - 30 A (0 A - 20 A *)
Lead-acid, gel, AGM battery nominal voltage 12 V.
Capacity (battery size), recommended / up to 60-200 / 260 Ah
Lead loading programs stored in the memory 3
Precharge current (deeply discharged battery <8V), max. 15 A (10 A *)
Safety charging voltage in the event of battery overtemperature 12.80 V.
LiFePO4 battery nominal voltage 12 V (12.8 -13.3 V)
Capacity (battery size), recommended / up to 60-200 / 260 Ah
LiFePO4 charging programs stored in the memory 4
Safety charging voltage in the event of battery overtemperature 12.80 V.
Recharging branch, charging / charge retention for the 12 V START battery
from the BOARD battery (e.g. when charging the BOARD battery from the mains) 12 V / 0-1 A
Active with lead acid, gel, AGM BORD battery voltage On:> 13.1 V, Off: <13.0 V
Active with LiFePO4-BOARD battery voltage on:> 13.5 V, off: <13.4 V
"T T" input for battery temperature sensor "board" yes
EBL START In, EVS measurement input: yes
Quiescent current, StandBy 3 ... 7 mA
Triple charging timer
Voltage ripple <30 mV rms
Charging voltage limit "+ OUT board" (consumer protection) 15.00 V
External overvoltage shutdown "+ OUT board" (20 sec) 15.50 V
Short circuit / back discharge / S.

1 "Gel": charging program for gel batteries, characteristic curve IU1oU2
Matched to closed, gas-tight gel / dryfit batteries with fixed electrolyte, which generally require a higher charging voltage level and longer U1 holding times in order to achieve short charging times with particularly high capacity storage and to avoid long-term battery "starvation".

2 "AGM": Charging program for AGM / fleece batteries, characteristic curve IU1oU2
Designed for charging closed, gas-tight AGM (Absorbent-Glass-Mat) batteries in lead-fleece technology, which require a particularly high U1 level with coordinated holding times for full charge and then a moderate U2 level to maintain charge (Plate and round cell technology).

4 "UNIVERSAL": Charging program for lead-acid / wet / AGM batteries, characteristic curve IU1oU2
Universal program for charging and maintaining the charge of acid batteries in vehicles (mixed mobile / stationary). With a medium U1 level, it still offers short charging times, a good charge factor and good acid mixing for open and closed, low-maintenance, maintenance-free standard, drive, lighting, solar and heavy-duty batteries, as well as AGM batteries with a normal U1 level.

Li "LiFePO4": Charging program for lithium batteries, characteristic IU1oU2
Charging program tailored to lithium LiFePO4 batteries with their own BMS and prescribed or built-in protective circuit.