D250S Dual

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THIS PRODUCT IS NOW END OF LINE AND HAS BEEN REPLACED BY THE D250SA CTEK the standard for DC to DC charging If you need a dual battery setup look no further The D250S Dual is what we call a DC to DC charging system. In this case with dual inputs, one from solar and one from an alternator. The so ...Read more
  • Description
  • Specifications

THIS PRODUCT IS NOW END OF LINE AND HAS BEEN REPLACED BY THE D250SA

CTEK the standard for DC to DC charging

If you need a dual battery setup look no further

The D250S Dual is what we call a DC to DC charging system. In this case with dual inputs, one from solar and one from an alternator. The solar input is up to 22VDC @ 25A, this outputs through the 20A 5 stage charging output profile and is considered the master input. The second input is from a vehicle's alternator which typically is supplying a voltage suited to the engine's management system or starting battery. Its almost never the correct charging voltage for what could be a flat house bank in the rear of the vehicle where the voltage drop over 3-5 metres could be 1 volt. This unit installed in the rear with the house batteries will ramp up the voltage to what's needed for the house battery to keep it well maintained at up to 20A, this is the slave input. By that we mean if you are in the sun the solar has priority charge of say 5A so that the engine doesn't need to work as hard to provide power for the other 15A that could be charging of the house batteries were flat. 

If you have a newer Euro 5+ vehicle then you should consider reviewing the latest release from CTEK the D250SA with its ignition feed and wider operating alternator input voltages. 

Weight: 0.8 kg
Width: 80 mm
Length: 250 mm
Height: 55 mm

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