Lesson with Nanocom

I'm using 14V laboratory power supply with some 10Ah PC accu when I'm reflashing the ECUs on the table in lab. It is easier, than going to car, especially in winter. The lab supply is capable of 10A, but during switch-on of the ECU, the current is much bigger for a very short time, because of large capacitor inside of the ECU.
In car you can use some sort of charger or power supply, with output voltage limited to cca 14V maximally. This is normal battery volage, when the engine is running.
In case of "death" ECU, it is possible to rescue the ECU by two ways - 1. reprogram the internall flash memory in an external programmer (you must desolder the flash memory). 2. - or through BDM interface (iside of ECU) reflash the memory without soldering.
I'm doing it the first way - it is faster for me.
And I have repaired some ECUs, but have not any problem with ECU death durind flashing.

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Originally Posted by djam1

Run an external voltage source on the main battery while flashing as originally stated a Ctek Charger on Supply Mode

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Double Dutch

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Originally Posted by gavinwibrow

Double Dutch

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How hard would have it been for you to google the terms "ctek supply mode" or even ask an intelligent question?? It wouldn't have taken any longer than to compose your inane "reply" and you might have actually learnt something of value.

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Originally Posted by OffTrack

How hard would have it been for you to google the terms "ctek supply mode" or even ask an intelligent question?? It wouldn't have taken any longer than to compose your inane "reply" and you might have actually learnt something of value.

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For the record - the reason ignoramuses like me ask questions is occasionally to try and learn, and not everyone is electics savvy.

I had already googled, and was not much, if any the wiser. I thought the questions were fair and respectfully and reasonably put, and if you read the first and second responses with an unjaundiced eye you might even notice just a wee element of circular answering. That was certainly the way it appeared to me.
With the very greatest of respect, I must admit my retort included an element of frustration in not understanding the answers and to my obviously uneducated mind not having my simple questions answered - at least in a form I could comprehend.

Having said that, the assistance available from this site generally and freely given is nothing short of brilliant and usually comprehensive. I hope you have a better day tomorrow!

Hey Gavin, not sure you wanted to be confused 'ctek supply mode' WTF !!!


The gist of what they are trying to say is don't flash your ECU if your battery voltage is low.

Ctek is a brand of battery charger , Why didn't they just say 'battery charger'
I must be an ignoramus too but I guess 'ctek supply mode' means not in charge mode, so why even bring ctek into the conversation !!

Simpler to just run an external 12v supply to the nanocom whilst doing the flash. e.g. another 12v battery or 12v plugpak , (but not a battery charger )

I'm going to confuse you some more then hopefully answer your question. ;)

A charger is not the correct thing to use while programming. A BSU is what is required to make sure of correct reprograming.

And here's why.
BBA BSU3 Smart Battery Support

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Originally Posted by goingbush

Hey Gavin, not sure you wanted to be confused 'ctek supply mode' WTF !!!


The gist of what they are trying to say is don't flash your ECU if your battery voltage is low.

Ctek is a brand of battery charger , Why didn't they just say 'battery charger'
I must be an ignoramus too but I guess 'ctek supply mode' means not in charge mode, so why even bring ctek into the conversation !!

Simpler to just run an external 12v supply to the nanocom whilst doing the flash. e.g. another 12v battery or 12v plugpak , (but not a battery charger )

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G'day and thanks so much. A simple answer to a simple question for a simpleton like me. Reinforces my point that this site (the people on it) is (are) brilliant.

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Originally Posted by nobbyclrk

I'm going to confuse you some more then hopefully answer your question. ;)

A charger is not the correct thing to use while programming. A BSU is what is required to make sure of correct reprograming.

And here's why.
BBA BSU3 Smart Battery Support

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Thanks so much Nobby? Mission accomplished - and I even learned something - GRIN!!
Again brilliant site/people.

Really sorry I didn't think it was that complicated

Ctek is a brand of charger to quote their manual

• SUPPLY In this mode, the charger delivers a constant voltage. This is the best maintenance mode for applications where maximum capacity from the battery is important. The Ctek MULTI XS 25000 could also be used as a power supply without a battery attached in this setting. No counter voltage is necessary to start the charger in this mode. Note that the charger is not spark free in this mode.

I acknowledge that Nobbyclrk may have a better idea sometimes there is only so much stuff that you can carry though

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Originally Posted by djam1

Really sorry I didn't think it was that complicated

Ctek is a brand of charger to quote their manual

• SUPPLY In this mode, the charger delivers a constant voltage. This is the best maintenance mode for applications where maximum capacity from the battery is important. The Ctek MULTI XS 25000 could also be used as a power supply without a battery attached in this setting. No counter voltage is necessary to start the charger in this mode. Note that the charger is not spark free in this mode.

I acknowledge that Nobbyclrk may have a better idea sometimes there is only so much stuff that you can carry though

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Hi djam1. No probs/no damage done and thank you for the courtesy of responding to my questions even though I didn't understand the answers.
I have always had the greatest respect for those who understand electrics (unlike me and the great unwashed).
As I just explained to SWMBO, my initial "double dutch" terse retort was missing a few words. What I had meant to say/type as I was rushing out the door was "its still double dutch to me" ie I still didn't "get" the answer/s to the question - which again reinforces how careful we have to be not to be misunderstood when we communicate, especially when we write things down - isn't that how wars start? Over and out.