I recently had the traction battery replaced under warranty (lucky!) and purchased a new Aux 12 volt battery as it was recommended by the dealer. I ended up installing the new one and when I checked the old one found that it still checks out at about 12.7 volts. I think it is in pretty good shape. So I am selling it if anyone is interested. I am asking for $45.00. And only local pickup. I am in Tustin, CA. Contact me at 714-602-2140 Manny
