My experience with a laptop GT1

[peterpaul]

Originally Posted by NBTBRV8

40 amps is a bit weak and it wouldn't hurt to run a few more volts. BMW now spec 80 amps, but 40 would proably be ok for an E53. My charger does 14.8V @70 amps from memory.

Sorry!
But the Voltage - meassuerd in "volt" MUST be constant!!!!!!
NOT more than 13.8 Volt!!!!

I think you mean: ... to run a few more AMPS ....." THIS will be correct.

mfg
peter

[peterpaul]

Originally Posted by mywidebody02

The more volts and amps started with the E87. Should be fine for E53 and down. The bulletin from 07 only had the amps at 45.

NOOOOOOOOOOOOOOOOOOO!!!!!!!
Please look the posting #491

THE VOLTAGE must be CONSTANT and NOT more than 13.8 Volt !!!!!!!!

mfg
peter

[mywidebody02]

Originally Posted by peterpaul

NOOOOOOOOOOOOOOOOOOO!!!!!!!
Please look the posting #491

THE VOLTAGE must be CONSTANT and NOT more than 13.8 Volt !!!!!!!!

mfg
peter

The power supply I'm gating is 13.8v.

[TwinsPoppa]

Originally Posted by peterpaul

NOOOOOOOOOOOOOOOOOOO!!!!!!!
Please look the posting #491

THE VOLTAGE must be CONSTANT and NOT more than 13.8 Volt !!!!!!!!

mfg
peter

Yes and No.

Yes, that's what you want to get - 13.8v constant.

No, that's not necessarily what you want for output from the PS. That's why its nice to have an adjustable one like the Deutronic. I specified 14.2v for mine to net 13.8v after taking into acct ignition.
My PS mode specs:

PS Mode = Output 14.2VDC @ 40 amps
- Boost On = 12.7V
- Boost Off = 14.2V
- Float On = 13.2

[hpy540]

WOW i read the whole thread. And...... i amstill a bit undecided. I have a e39(third one of these i have owned) M5 and i have bought the autoengnuity SW and HW and i am dissatified. My car is smushed adn i have to code the steering wheel the car and aiso have to reset the airbag controll modules. Ihave a heater and it is not this not the FSU. I am a pretty good"Wrench", a so so body man, and a pretty good PC/programer( i have eFl live for my duramax). is this pretystrght freword or should i just get some KY and head to the dealer?
BMW Inpa v5.01 .................for$265 plus wich laptop again?

[mywidebody02]

I know its not a bmw but the gt1 dis v57 and the sss v34 work with the dk yellow head on R50/R53 mini. Just in case anyone was wondering.

[NBTBRV8]

Originally Posted by TwinsPoppa

Yes and No.

Yes, that's what you want to get - 13.8v constant.

No, that's not necessarily what you want for output from the PS. That's why its nice to have an adjustable one like the Deutronic. I specified 14.2v for mine to net 13.8v after taking into acct ignition.
My PS mode specs:

PS Mode = Output 14.2VDC @ 40 amps
- Boost On = 12.7V
- Boost Off = 14.2V
- Float On = 13.2

Yes that's about right. It has been a while since I ran mine as I have sold my BMW. But you have to account for a power loss so 14.5-8 drops back to a constant 13.8 or there abouts. My unit puts out 70 amps and BMW now recommend 80 amps as do Audi. But on the older cars you'd get away with 40 amps.

[pepsicola]

The voltage warning that come up DO NOT affect the connectivity to the car.
The fact that it show up means it's already communicating with the car.

[Weasel]

Yep, I said in before on this thread that you can just click past that warning and continue diagnosis... Just take it as a reminder not to kill your battery.

HOWEVER, you DO need a battery charger that is up to the task for programming/coding needs.

[mywidebody02]

Ok so i ran into some issues. Problem 1 the power supply i got is useless. its 13.69 volts when on and when you hook it up to the car it drops to 12.4. Problem 2 is the DK head will not communicate with the vehicles. I used it 4 times and is only 3 months old. Have to send it back with a three week turnaround. Meanwhile I have a car i need to diagnose.