Brammo Owners Forum

Brammo Enertia Discussion => Brammo Enertia Servicing => Topic started by: sunchaser on April 23, 2021, 09:04:10 AM

Title: Does anyone know the Valence U1-12XP comm cable pinout?
Post by: sunchaser on April 23, 2021, 09:04:10 AM

I've been thinking about making an RS485 (I believe that's correct) for the batteries and trying to connect to them with the Valence software.  There are tutorials online for the U27 series batteries, but they have a different connector than the U1.  It would be helpful to know the cell voltage of each of the individual batteries.

If anyone has any info on how to make a cable for the Valence U1-12XP please share.

Here are a few links with steps on making a communications cable for the U27 batteries:

https://www.brewskynet.com/valence/ (https://www.brewskynet.com/valence/)

https://300mpg.org/2019/08/26/lithium-battery-communications/ (https://300mpg.org/2019/08/26/lithium-battery-communications/)

https://diysolarforum.com/threads/problems-with-valence-software-scanning-battery.1607/ (https://diysolarforum.com/threads/problems-with-valence-software-scanning-battery.1607/)

I also found this in the Enertia (Legacy model) wiring diagram.  Unfortunately I don't know which pin is which.

Title: Re: Does anyone know the Valence U1-12XP comm cable pinout?
Post by: Barty on June 20, 2021, 08:15:30 PM

Hi SunChaser,
   Any updates on this?

Barty

Title: Re: Does anyone know the Valence U1-12XP comm cable pinout?
Post by: sunchaser on June 29, 2021, 04:56:30 PM

Yes.  Lots of progress.  Check out my recent post.

http://brammoforum.com/index.php?topic=4113.msg28511#msg28511 (http://brammoforum.com/index.php?topic=4113.msg28511#msg28511)