On Board Charging - Installing your system

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[@landau510]

@ 2:17 you show "inverter live to consumer outlet earth or ground to the top of connection shunt" Why would you put the live from the inverter to an earth not the active terminal? im also not understanding why you would put the positive for the inverter to a point that is also designed for an earth especially when the unit shows that terminal as a positive. Im assuming you also mean that the earth form the inverter goes to the top side of the shunt??

[@CTEKBatteryChargers]

Hi, This is a tricky question that need a bit more thoughts, Can you please write down your question, with a bit more information and send to [e-mail] Best regards CTEK Support

[@sigmundvedvik4526]

Hi, is the Ctek Smartpass 80 (old model in white) compatible with the D250SA (new model in black)?

[@CTEKBatteryChargers]

Hi, Yes, they work fine together Best regards CTEK Support

[@michaelchatterley758]

I've got both units installed and 220amp agm battery . When I start the engine it only charges at less than 20amps is that right?

[@CTEKBatteryChargers]

Hi, that is possible, if the batteries are between 80-100% of fully charged. The charger states how fast the battery can take charge without getting harmed and act accordingly. We call that ABSORBTION. There can also be other reasons, but not knowing more about the system, this is my best guess. If you want more in details please contact [e-mail] for help. Best regards CTEK Support

[@clarkspiemuncher24]

why is my ctek d250sa outputting a 14.7 charge when the battery is a lead acid and the cable is not connected for agm and the battery is fully charged and in an ambient environment in an insulated van ?

[@CTEKBatteryChargers]

Hi. It's hard to say - but could it be the temperature compensation? Quite common in wintertime, but I don't know where you live. Best regards CTEK Support

[@clarkspiemuncher24]

@@CTEKBatteryChargers i am in the uk and the unit is in an insulated van in an ambient temperature and a fully charged battery and has no need to charge at an agm rate of charge on a lead acid battery ? as you dont offer repairs to these units ? are the schematics of the components available so i am able to consider asking someone local with knowledge of electrical circuit boards to test the components for me ?

[@CTEKBatteryChargers]

@@clarkspiemuncher24Hi, if the ambient temperature is about 10-15 degrees, the 14,7 sounds normal. I do not think there is any problem with your unit. Best regards CTEK Support

[@clarkspiemuncher24]

@@CTEKBatteryChargers your manual states that the maximum the unit should put out for a lead acid battery is 14.4v not 14.7v i am asking you why if it states in your manual the maximum should be no more than 14.4v why you are saying 14.7 sounds right ?

[@CTEKBatteryChargers]

@@clarkspiemuncher24 Hi, the maximum voltage is measured at +25 degrees Celsius. The temperature compensation will make sure the voltage is high enough when it is colder and low enough when it is warmer in order to fully charge without dry out the cells. Compensation is done with 0,03V for each grade. That is most likely the reason why you measure 14,7 instead of 14,4V. Best regards CTEK Support

[@euromodeller]

Up to a 100a battery you dont need the smartpass unit. bloody annoying they keep plugging it

[@CTEKBatteryChargers]

Hi, you are right, as long as you don't have a big amount of consumers active you don't need the Smartpass S if your battery is 100Ah. But even if you choose to have the Smartpass unit - you only plug it in once! And then you are well prepared if you want to have a larger service battery (bigger bank). Best regards CTEK Support