Pavan7732
Posts: 3
Joined: Mon Jun 22, 2020 1:58 am

Assistance for Battery testing

Mon Jun 22, 2020 1:09 pm

Hello All,

I'm a masters student doing my thesis on battery second life testing after retirement from EV applications. I would like to log cell pair voltages which later used in a script to determine SOH. I want to extract cell voltages at different loads, which will be applied through Digathron battery tester. The functionality to send and receive CAN messages is available on battery manager software that comes along with Digathron.
I have absolutely zero knowledge about CAN working and decoding data. I would be extremely happy if someone could help me in extracting cell pair voltages and provide me a good understanding to proceed further.
Thanks in Advance!

cwerdna
Posts: 10777
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Assistance for Battery testing

Mon Jun 22, 2020 3:35 pm

I don't think he'd have the bandwidth to help you, but Turbo3 (author of Leaf Spy) did reverse engineering long ago on this subject: https://www.mynissanleaf.com/viewtopic.php?t=17470. ELM327 dongles use (AFAIK) commands like the old Hayes AT modem commands. I used them ages ago (e.g. ATH, ATDT, ATZ, etc.)

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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