Dual Battery Systems

Ctek D250S Dual Battery Charger
Ctek D250S Dual Battery Charger
  • Model: D250s
  • Manufactured by: Ctek

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Adventure Auto Electrics togeather with Ctek Dual Battery systems is by far the superior of DC to DC charging combinations on the market today, Adventure Auto Electrics provide an exceptional quality installation and service of all dual battery systems. Ctek are a market leader in Battery Charging technology and have not disappointed with Ctek D250S, providing best in class 5 stage battery charging, automatic solar input (which will work togeather with your alternator) to an automatic switch back to charge your main battery from the solar input once your auxillary battery is fully chargered.

Adventure Auto Electrics provides a full driver in drive out Dual Battery System best designed to suit your vehicle and desired needs, with custom Fridge/ Aux Socket wiring, with USB and Anderson plug options as required to complete your project.

The D250S DUAL charger obtains its energy from DC sources such as alternators, solar panels or wind power and optimises this power to meet the charging requirements of different battery banks. The D250S DUAL automatically selects the best connected DC energy source (of 2) for the purpose and switches between these energy sources to achieve high efficiency multi-stage charging. The D250S DUAL is particularly suitable for charging auxlliary battery banks in 4wd's, caravans, boats and second homes that do not have access to grid power supplies. Charging automatically starts as soon as DC energy is provided to the charger, such as from alternators when a vehicle is started or from solar panels when connected. The D250S DUAL has a temperature sensor which ensures optimal charging voltages at all temperatures. The D250S DUAL ensures that your batteries are always in good condition, quick charging and long battery lifetimes.  

The D250S DUAL is a fully automatic 5-stage charger that supplies 20A to 12V batteries of 40-300Ah. The charger is IP65 classified (water jet and dust protected and approved for outdoor use), protects vehicle electronics and is suitable for all types of lead-acid batteries (Wet, MF, Gel, AGM). It is supplied with a 2 year guarantee.

Male terminal (grey) 2pcs 14,5 mm
Male terminal (black) 2pcs 14,5 mm
Temp sensor

Volt 12V
Charging voltage 14.4V at 25°C, temperature compensated
Charging current 20A
Back current drain <1Ah/month
Ripple <4%
Ambient temperature -20°C to +50°C, output power is reduced automatically at high temperatures
Charger type 5-step fully automatic charging
Battery types All types of 12V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity 40–300Ah
Dimensions 192 x 110 x 65mm (L x W x H)
Insulation class IP65



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