Ctek 250s with smartpass charger

wisper

Guest
Hi
Am thinking off buying the ctek 250s with smartpass charger to charge my 500ah batterie bank,but just wondering if anyone else has one off these and your views on them ?
thanks
paul
 
I have used these before and they are very good.

I would have a look at eBay and you will find companies in Europe are cheaper. This is because of the value of the Euro. I contacted a seller in Spain last week about both units and was offered them brand new for about £150 each including international postage.

CTEK Smartpass 12V 56-676 DC/DC Ladegerät | eBay

CTEK D250S DUAL 12V 56-677 | eBay

Conrad have the Smartpass for £150 + p&p

CTEK Automatic charger Smartpass 56-676 from Conrad Electronic UK
 
Can I just ask if anyone knows, when fitting the ctek what about your existing switch relay would all that have to disconnected ?
 
Don said:
Can I just ask if anyone knows, when fitting the ctek what about your existing switch relay would all that have to disconnected ?
Click to expand...

If you have a dual charge relay connected between the same batteries, then yes it needs to be removed.
 
Admin said:
I have used these before and they are very good.

I would have a look at eBay and you will find companies in Europe are cheaper. This is because of the value of the Euro. I contacted a seller in Spain last week about both units and was offered them brand new for about £150 each including international postage.

CTEK Smartpass 12V 56-676 DC/DC Ladegerät | eBay

CTEK D250S DUAL 12V 56-677 | eBay

Conrad have the Smartpass for £150 + p&p

CTEK Automatic charger Smartpass 56-676 from Conrad Electronic UK
Click to expand...

Thanks for that I may just have to buy one, I have seen a uk seller selling them both together for £336.00 free postage,
 
I have this system with Smartpass, and my initial thoughts are good, but I have not used it long term yet as I decided to change my van. I use along with a 100 watt solar panel, and I have a Waeco compressor fridge.
 
Admin said:
If you have a dual charge relay connected between the same batteries, then yes it needs to be removed.
Click to expand...

Agree with all previous and I find it excellent. I would also advise you upgrade the wiring from the unit to the batteries particularly if you are using the Smart pass and remember fuses at both end
 
wisper said:
Hi
Am thinking off buying the ctek 250s with smartpass charger to charge my 500ah batterie bank,but just wondering if anyone else has one off these and your views on them ?
thanks
paul
Click to expand...

Out of nothing more than curiosity are these to replace a motorhome built in charger or for use on self builds ?
 
Obanboy666 said:
Out of nothing more than curiosity are these to replace a motorhome built in charger or for use on self builds ?
Click to expand...

Hi
not to replace the charge system, it goes from your starter batterie/alternator and boosts the charge to your leisure batteries while driving,
here's more info
SmartPass is an energy management unit which controls and optimises energy produced by alternators, solar cells, wind power or conventional AC/DC chargers, and distributes it to the battery banks or consumers which require energy, such as the deep cycle bank, bow thruster batteries, consumers, etc.


Used together with a D250S, SmartPass provides optimal charging via CTEK’s unique staged charging cycle, which also protects your batteries. SmartPass also has an integrated ‘battery guard’ which protects deep cycle batteries from harmful total discharge and ensures that critical equipment such as radio, emergency lights and navigation systems always function.


SmartPass has a temperature sensor which protects batteries against high temperatures.


SmartPass is a fully automatic energy management system which can handle up to 80A for batteries of between 28-800Ah.


The energy management system is IP65 classified (water jet and dust protected and approved for outdoor use).


Suitable for all types of 12V lead-acid batteries.


Male terminal (grey) 2pcs 14,5 mm
Male terminal (black) 2pcs 14,5 mm
Connection plate 2pcs
Eyelet M8 (8,4 mm) on cable
Temp sensor




INTEGRATED SYSTEM

Combining the D250S Dual and Smart Pass ensures optimal battery charging.
the Smart Pass manages the energy transfer through the D250S Dual,
which then converts and produces the optimal voltage of 14.4 V, even if
the alternator only produces 14 V.






BATTERY WATCH TECHNOLOGY

CtEK’s built-in Battery Watch technology allows the Smart Pass distributes energy to service battery or consumers or both.
The Smart Pass can also switch off consumers with a battery guard function.
This ensures that service batteries are protected from being deeply
discharged, providing batteries with an optimal service life and reducing
the frequency and need for regular traditional charging.


Features



Volt:
12V
Charging current:
80A
Back current drain:
<1Ah/month
Ripple:
<4%
Ambient temperature:
-20°C to +50°C, output power is reduced automatically at high temperatures
Battery types:
All types of 12V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity:
28–800Ah
Dimensions:
192 x 110 x 65mm (L x W x H)
Insulation class:
IP65
Weight:
0.74kg





  • Battery separation eliminates diodes and VSr relays

  • Charging of service batteries up to 100 a (together with D250S Dual), reducing recharge time

  • To separate the consumers from the Service battery makes charging of Service battery more effective and spare consumers from high charging voltage.

  • Temperature protection of services batteries reduces charge current at high temperatures [patent pending]





BENEFITS


  • Maximised battery life as a result of reduced incidences where the battery is undercharged

  • Reduced charging times and costs by decreasing engine idling

  • Reduced dependency on a C power onshore through efficient use of alternator

  • Reduced environmental impact through extended battery life and a reduced idle time

  • Minimal installation time and cost






Protections


SmartPass also has an integrated ‘battery guard’ which protects deep cycle batteries from harmful total discharge and ensures that critical equipment such as radio, emergency lights and navigation systems always function.


SmartPass has a temperature sensor which protects batteries against high temperatures.






Application


The CTEK Smart Pass is suitable for Boats, Service vehicles, Campervans, RVs, Caravans, 4WD,Heavy vehicles




Specifications - CTEK D250s Dual Charger & Conditioner


CTEK D250S Dual - 12V 20A Battery to Battery Charger


The D250S DUAL charger takes power from DC sources such as alternators, solar panels or wind turbines and optimises this power to meet the charging requirements of different battery banks.


The D250S DUAL automatically selects the best connected DC energy source for the purpose and switches between these energy sources to achieve high efficiency multi-stage charging.


The D250S DUAL is particularly suitable for charging vehicles that do not have access to grid power supplies. Charging automatically starts as soon as DC energy is provided to the charger, for example from alternators when a vehicle is started or from solar panels when connected.


The D250S DUAL ensures your batteries are always in good condition and help prolong their lifespan.


Input Voltage: 12.8-22V DC (7-22V DC on request)
Charging Voltage: 14.4V, temperature compensated
Charging Current: 20A max
Efficiency: 95%
Own Consumption: <4mA
Current Ripple: <1%
Ambient Temperature: -40°C to 50°C, output power is reduced automatically at higher temperatures
Cooling: Natural convection
Charger Type: Multi-stage, fully automatic DC/DC charger with float/pulse maintenance
Battery Types: 12V lead-acid batteries (Wet, MF, AGM, Gel and Calcium)
Dimensions(mm): 192L x 110W x 65H
Enclosure Class: IP65 (splash and dust proof)
Weight: 0.73Kg
Battery Temperature: -40°C to +70°C
Battery Capacity: 40-300Ah


Features




  • Battery separator that eliminates diodes and VSR relays

  • Maintenance charge of starter battery

  • Solar panel regulator with Maximum Power Point Tracking, synchronised with other current sources such as the alternator and/or wind

  • Simplified installation of remote batteries for bow thrust of anchor winch




BENEFITS



  • Maximised battery life due to minimised undercharge time

  • Maximised battery capacity when the battery is kept fully charged to avoid harmful sulphate crystals on the lead plates and stratification of the battery acid.

  • Ability to take charge automatically from any power source that is connected to the D250S DUAL

  • Reduced charging times and costs by decreasing engine idling and the dependency on AC power onshore through efficient use of alternator and solar power

  • Reduced environmental impact through extended battery life and a reduced idle time

  • Minimal installation time and cost




SUITABLE FOR

  • Boats

  • Campervans and RVs

  • Caravans

  • 4WDs

  • Housing that rely on generators for extra electricity


D250S DUAL is a 5-step charger that automatically adjusts the charging voltage and current according to the battery state of charge and temperature–reducing a battery’s charge time.


A sensor on the CTEK charger senses the battery temperature and adjusts the required charge by increasing the voltage in cold weather ensuring the battery is fully charged, and dropping the voltage in hot weather to avoid the problems of overcharging.


With the D250S DUAL, vehicle owners can be confident that their battery will always receive the optimal charging voltage, with reduced charge time and while ensuring the charging will be 100% complete.




SOLAR CONNECTION
The D250S DUAL has the additional benefit of an auxiliary input which can be connected directly to solar panels without the need for a regulator, offering free power from the sun.


D250S DUAL has a built-in Maximum Power Point Tracker (MPPT) that helps the solar cells produce power as efficiently as possible by taking the most efficient source of energy from the solar panels automatically, and then using the power to charge the battery.
The MPPT searches for the most effective combination of solar cell voltage and current, which ensures that the solar and alternator function in unison to maximise power output.




Protections


No harmful galvanic currents - CTEK M200 produces no harmful galvanic currents that cause corrosion which quickly damages various metal components under the boat, including propellers and ladders




Application


The CTEK D250S Dual 12V 6 Stage Charger is suitable for Boats, campervancs & RV’s, caravans, 4WD & housing that rely on generators for extra electricity.



 
Last edited by a moderator:
Many thanks Wisper. Sounds a brilliant bit of kit but I don't think its something I will bother with.
What amazes me is the charging kit you can use on a motorhome, solar, alternator, mains, genny, wind etc, etc. the list is endless.

Steve.
 
Bear in mind you only need the smartpass unit if your battery bank is fairly large, ie: more than 250ish ah.
 
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