Electric vehicle battery age
 

I'm looking into Leaf or Volt battery packs for solar storage. I have a question. Is there a way to verify what the age is for a pack that has already been removed from a vehicle? Maybe stamped somewhere on the pack? I know state of charge is just as important as age. I just don't want someone to tell me they have a 2013 or 2014 pack and it actually turn out to be a 2011.
Thanks guys.
JJ

Ok. No takers. Well, I got a pack and there is a plate at the business end(electrical connectors) of the pack that has a date that says 07-09-12. While it doesn't specifically say that is the build date, I'm going to guess that there is a good chance that it is. Haven't been able to find any information about this at any of my regular info forums or at any Volt forums. I'll post pix when I have more time.
JJ

Attachment 8325

This one is the front end of the pack. The area circled in red has the date code. I am guessing that it is the build date, but it is actually stamped into the metal so it could just be the date the end plate was built.



Attachment 8326

Here is a close up.

JJ

I would also bet it was the build date good find.

What info did you get from the seller on the pack's condition?


Or is this a hope/prayer kind of transaction?

The seller had a 2014 Volt with a wrecked front end. He bought the 2013 model with a wrecked rear end to replace the front end on his vehicle. He said he used to work as an auto mechanic and from the vehicles he had in his yard I believe him. He also said that the Volt he bought must have been fully charged just before the accident since it showed a near full charge on the gauge. Also said he was able to drive it up on a ramp to facilitate the removal of the pack. I expect to pull the cover this week to at least test the voltage level.
JJ

Ok I couldn't wait. Pulled the cover off the pack and the meter reads 384 volts. That sounds like a win to me.
JJ

Anxious to hear your story about how you will implement and use this pack!

Good Job!