CTEK DS DUAL D.C Charger – DC/DC solution for operational charging The DS DUAL charger obtains its energy from DC sources such as alternators. The CTEK DS Dual DC-DC charger will charge, condition and maintain your dual battery system, with the ability to charge from both your alternator while. Why won’t my CTEK DS Dual Charge from Solar Panels? The CTEK D DC-DC Charger will also charge from solar panels while it is getting input from.

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This will protect your main starting battery dul auxilary drain and regulate current for multi-battery systems. The SmartPass can provide a higher amperage charge rate which it would receive from an alternator with higher output to handle more demanding service batteries and banks of batteries. We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work.

Does come with two metal connectors that you can just open them up just like that and connect your to the other chargers and four extra thumb screws. This will in turn allow the battery to charge quicker.

CTEK SmartPass Energy Management Unit for CTEK D250S DUAL Battery Charger

It takes advantage of higher-output alternators to charge larger banks of service batteries, and it protects both batteries and electronics. This is your temperature sensor right here.

If the ground of duaal chassis is good you would be just fine to run the ground there instead rual back to the battery. It’s designed to charge multiple batteries from multiple sources and if one battery is topped off it would not continue to charge it and it would then apply the current to the other battery. Contact Email Please enter a valid email address. It will separate the service batteries from equipment that they operate during duzl charging process, gives priority to service batteries to charge them faster, helps protect the electronic equipment, and it charges the service batteries much more efficiently.


Easy-to-read indicator lights keep you informed of SmartPass charging actions and alert you to any problems that may develop. The input voltage range is 10 volts DC up to 22 volts DC.

CTEK DS Dual Input Battery Charger | eBay

This charger system is designed to allow a trailer battery to be charged from either a wall outlet or a solar panel like you have and give you a perfect charge without backfeeding the solar panel. The LED lights each need to be grounded to v250s frame of your trailer; And you could run 2 of the DS chargers, CTEK, off of the same power source provided that the power source is rated for the combined draw of both chargers.

This lets you avoid severely discharging the service battery and losing power to vital electronics such as lights, radios cyek navigation equipment. If the service battery charge gets low, the SmartPass will cut power to the non-critical equipment first.

The DS requires an input voltage range of 10 to 22 volts but Info for this part was: Additionally, If there is no input charge from the d250 vehicle and the trailer battery is being used, the tow vehicle’s battery is not going to be drained.


The cables on it has an eyelet terminal right here that connects to the negative cable. With that being said, a 20 minute ctfk is not really sufficient time to charge a battery so your best option would be to incorporate the use I have attached a c250s showing how this setup would work for you; I’ve also attached a review video of the SmartPass Unit for you to take a look at. Does include the charger right here.

Things to be Aware of When Charging a Battery from an Alternator The biggest thing to be aware of is that your dul will more or less provide just a maintenance charge for your batteries. Having 4 gauge wire from the battery to the charger and then back to the other batteries will be the way to go.

This will enhance your alternator performance and allow you to efficiantly charge your battery. Will work on trucks, campers, RVs, 4-wheel drives, boats and tractors. Returns Policy Satisfaction Guarantee Need to return an item?


Show All 1 videos Show Fewer Videos. This combination will allow Conditions must be perfect while using solar power for Your comment has been submitted successfully. If you don’t have anything drawing power it may very slowly charge your batteries but the best way to keep your batteries charged is by using a charger like part CTEK when you have access to AC power.