Product conditions

Fronius ACCTIVA Twin 15A

Fronius ACCTIVA Twin 15A
Fronius ACCTIVA Twin 15A Fronius ACCTIVA Twin 15A Fronius ACCTIVA Twin 15A Fronius ACCTIVA Twin 15A
Brand: Fronius
Product conditions: New
Product Code: Fronius ACCTIVA Twin 15A
Reward Points: 0
Availability: 2 - 3 Days
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Product information:  


  • Based on Active Inverter Technology - Universal - for all batteries: conventional lead acid, lead calcium/silver or sealant type (AGM, MF) batteries, and maintenance-free lead gel batteries.
  • Automatic 12 V / 24 V battery voltage detection
  • Charge status, fault and start/stop are indicated on the LED display
  • Plug-in charging and mains cables
  • Highly efficient cooling system ensures stable operation
  • Both battery and vehicle are 100% safe thanks to short-circuit protection, active reverse polarity protection, active mains voltage monitoring, automatic open circuit voltage detection (when changing a battery) plus charge phase monitoring (for faulty battery)
  • Charging of deeply discharged batteries possible
  • Up to 96% energy efficiency


Technical Data

Charging current

15 A
Battery capacity 50 - 300 Ah
Battery voltage 12 V / 24 V
Mains voltage 230 V +/- 15 %
Charging characteristic   IUoU (with pulse charge conservation) 
Degree of protection IP 40 (horizontal) / IP 44 (vertical)
Dimensions (l x w x h) 247 x 184 x 88 mm / 9.72 x 7.24 x 3.46 in. 
Weight 2.26 kg / 4.98 lb.
Marks of conformity CE, ECE
Mains fuse protection 16 A
EMC emissions class  B


Equipment features


When setting up a 24 V vehicle electrical supply from two 12 V batteries connected in series, the Acctiva Twin ensures that different charge statuses are evened out even if different loads are placed on the two batteries by 12 V and 24 V consumers. The Acctiva Twin can also be used with different battery combinations (see graphic).


  • FireCAN communication interfaces and a floating contact are used to transfer data between the battery charging system and the vehicle's electronic system; these are active in drive, standby and charge modes. The FireCAN option transmits device status and battery voltage, and can detect the following problems: reverse polarity. short circuit, battery error, charging error. The integrated error memory stores the ten most recently countered errors. More information to FireCAN can be found here.
  • The temperature-controlled charging option reduces water consumption and increases battery service life.
  • USB interface for updating battery charging system software.

Protective features:

  • Active reverse polarity protection
  • Active mains voltage monitoring
  • Automatic open circuit voltage detection (when changing a battery)
  • charge phase monitoring (for faulty battery)
  • Electronically safe
  • Short-circuit protection




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