I didn't say it had a "3 year battery life", I asked what the trade-in value would be on a 3-year-old VOLT with a dead battery.
You probably don't know what a "rhetorical question" is, so I understand your confusion.
So, let's say a five-year-old VOLT with a dead battery...or how about a 10-year-old VOLT with a dead battery. Actually, they would be much older model years, and would bring even less.
I was trying to be as kind as possible to this POS car, but now that you've weilded your hair-splitting knife, we'll look at all scenarios.
Batteries die...they all eventually do. WHENEVER the VOLT battery dies, you're left with an empty, expensive, and useless, car body.
But wait! There's another factor.
If I go to one of the home center stores and buy, say, a new battery for my lawn mower, or even a re-chargeable drill...there is the infamous "disposal fee" for the old battery. Can you imagine what the "disposal fee" will be for a battery the size of the one in the Volt will be? It's pretty complicated just removing the thing, and then you have to pay some sort of EPA fee to have it disposed.
Three year, five year, fifty year...it doesn't matter, and it's not the point.
