Charging Converter VCC 2424-25 IUoU

Article-No. 3313





VCC 24

Battery-to-Battery (B2B)
Charging Technology


Starter Battery   Supply Battery

Galvanisch isoliert EN


  • High charging capacity, already within short distances
  • Significantly improved energy balance of the supply circuit
  • Outstanding protection of the supply battery and the connected consumers against sometimes very strong voltage fluctuations of dynamically controlled dynamos of newer vehicles
  • During longer distances, the IU1oU2 charging technology achieves full charging and overcharging is reliably excluded
  • Optimised characteristic lines of charging adjustable for 4 battery types by battery selector switch (acid, gel, two times AGM)
  • Automatic, adjustable power control giving priority to charging of the starter battery by the dynamo in case of strong loaded vehicle mains to ensure that the vehicle can be started at any time
  • In case of simultaneous consumption during parallel and floating operation, charging of the battery is continued or trickle charging is effected. Calculation and control of the adaptation of the charging time is effected automatically by the charging converter
  • The integrated temperature compensation automatically ensures the individual adaptation of the charging voltage to the battery temperature independently of the dynamo. Battery temperature sensor, Art.-No 2001, is required
  • Simple installation, no interventions in the starter circuit required. The unit is switched into the charging cable to the supply battery
  • The connection of a Remote Control S, Art.-No. 2075, or Remote Indicator IP67, Art.-No. 2081, or Charger State Monitor IP67, Art.-No. 2082, plug-in type, is provided and can easily be realised
  • Also suitable for an operation with EBL (electroblock) and EVS (only VCC 1212-25 and VCC 1212-45 IUoU)
  • Integrated on-board mains suppression filter ensures unproblematic parallel operation of solar systems, mains chargers and other charging sources at one battery
  • Galvanic isolation between input and output ensures absolute separation of the battery circuits for outstanding suppression of failures, for neat ground ratio on both sides, also with long supply cables, safety in case of failure (puncture 12 V/24 V or 24 V/12 V is not possible) and reliably avoids undesirable back discharge of the battery circuits
  • Control input for fully automatic controlled operation (ignition, D+ motor running) or optionally manual control by remote switch
  • If required, the measuring input allows a pure voltage control of the unit
  • The application range of the unit also covers perfect battery charging in great distance of the dynamo in large vehicles, trailers, supply containers etc.

Technical Details

 Charging Capacity in [V]/[A] 24 / 25
 Max. Current in [A]
 Input Voltage in [V] 22 - 32
 Battery Type adjustable
lead-acid, lead-gel or lead-AGM1 / AGM2
 Nominal Battery voltage IN in [V] 24
 Battery Capacity IN in [Ah] 60
 Power Consumption IN (AC) in max. [W] 800
 Nominal Battery voltage OUT in [V]
 Battery Capacity OUT recomm./up to [Ah] 50 - 170 / 220
 Characteristic Line of Charging IU1oU2
 Overvoltage Disconnection
 Ripple Factor Voltage in [mV] rms < 50
 Charging Timer
 Mounting Position of Unit any
 Temperature Range [°C] -20 to +45
 Protection Class/System of Protection IP 21
 Dimensions (WxDxH) in [mm] - Dimensions incl. mounting flanges, without connections 160 x 71 x 245
 Weight in [g] 1700
 Mark of conformity (CE) EN 60335-2-29
 Ambient Conditions, Humidity of Air:  max. 95 % RH, No Condensation
 Delivery Scope: Operating Manual

Charging Programs

1 „Gel“: Charging Program for Gel Batteries, Characteristic Line IU1oU2
Adapted to closed, gas-tight gel/dryfit batteries with determined electrolyte, which are generally requiring a higher charging voltage level and longer dwell times U1 to achieve short charging times with particularly high capacity storage and to avoid total discharge. Also recommended for EXIDE MAXXIMA a high-current battery in AGM filament technology.

2 „AGM“: Charging Program for AGM/Fleece Batteries, Characteristic Line IU1oU2
Adapted to charging closed, gas-tight AGM (absorbed glass mat) batteries and batteries in lead-fleece technology requiring a particularly high level U1 with adapted dwell times for full charging and after that a moderate level U2 for trickle charge (round cell and plate technology).

3 DIN 0510“: Charging Program for Lead, Acid/Lead-Acid Batteries, Characteristic Line IU1oU2
General characteristic line DIN for charging and conservation to charge of open and closed lead storage batteries with removable cell plugs and possibility of acid level control and acid level correction (maintenance). Also suitable for recently developed, closed battery types (low-antimonous, with lead-silver alloy, calcium etc.) with low and very low water consumption.
Allows short charging times with high level U1, high charging factor and high acid mixing, even during stationary application (acid accumulation) of "wet" drive, lighting, solar, heavy duty and standard batteries.

4 „UNIVERSAL“: Charging Program for Lead, Acid/Lead-Acid Batteries: Characteristic Line IU1oU2
Universal program for charging and conservation of charge of acid batteries in vehicles (mixed operation mobile/stationary). Still offers short charging times, good charging factor and good acid mixing with average level U1 for open and closed, low-maintenance, maintenance-free standard, drive, lighting, solar and heavy duty batteries.


Anleitung Katalog


Fernbedienung S Ladegeraete 2075

Remote Control S (Art. 2075)

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