Voltage Requirements ECU Flash

shakywarrior · 09-29-2016, 02:47 AM

When flashing the ECU what is the volt requirement from the battery charger? Im trying to purchase a battery charger but only finding up to 12v and everything above that is over $100... Someone told me when flashing my ECU I need a MINIMUM of 20v... Is that true?

BPMSport · 09-29-2016, 03:15 AM

Quote:

Originally Posted by shakywarrior

When flashing the ECU what is the volt requirement from the battery charger? Im trying to purchase a battery charger but only finding up to 12v and everything above that is over $100... Someone told me when flashing my ECU I need a MINIMUM of 20v... Is that true?

Flashing the ECU with our cable has been tested successfully down to 10.8v with no issues... now this is VERY low..

12v should be your target minimum.. we've just tested for worse case scenario. Normally you'll see 12.1-12.3 on battery power with the ignition on, which is sufficient for a 10 minute flash.

Not sure what you're using to flash but I'd contact your vendor and ask them.

The "20v" you're referring to is likely 20 amps - nice to have a power supply that can output this, but by no means necessary.

shakywarrior · 09-29-2016, 09:19 PM

Quote:

Originally Posted by Mike Benvo

Flashing the ECU with our cable has been tested successfully down to 10.8v with no issues... now this is VERY low..

12v should be your target minimum.. we've just tested for worse case scenario. Normally you'll see 12.1-12.3 on battery power with the ignition on, which is sufficient for a 10 minute flash.

Not sure what you're using to flash but I'd contact your vendor and ask them.

The "20v" you're referring to is likely 20 amps - nice to have a power supply that can output this, but by no means necessary.

Well I got a 12v 45 amp battery charger and it didn't work. Same error message. I guess it's my tuning cable that is defective.

BPMSport · 09-30-2016, 12:28 PM

Quote:

Originally Posted by shakywarrior

Quote:

Originally Posted by Mike Benvo

Flashing the ECU with our cable has been tested successfully down to 10.8v with no issues... now this is VERY low..

12v should be your target minimum.. we've just tested for worse case scenario. Normally you'll see 12.1-12.3 on battery power with the ignition on, which is sufficient for a 10 minute flash.

Not sure what you're using to flash but I'd contact your vendor and ask them.

The "20v" you're referring to is likely 20 amps - nice to have a power supply that can output this, but by no means necessary.

Well I got a 12v 45 amp battery charger and it didn't work. Same error message. I guess it's my tuning cable that is defective.

What's the error message? Perhaps that would help us help you....

shakywarrior · 09-30-2016, 12:56 PM

Quote:

Originally Posted by Mike Benvo

What's the error message? Perhaps that would help us help you....

Got it figured out. Made a silly mistake. Thanks for the help.

09-29-2016, 02:47 AM	#1
shakywarrior Private First Class 55 Rep 151 Posts Drives: E92 M3 AW/Ext. Black Join Date: May 2016 Location: DFW TX iTrader: (0)	Voltage Requirements ECU Flash When flashing the ECU what is the volt requirement from the battery charger? Im trying to purchase a battery charger but only finding up to 12v and everything above that is over $100... Someone told me when flashing my ECU I need a MINIMUM of 20v... Is that true?
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