Charging time for older battery pack

[BakerRV]

First time poster here. I searched around and did not see my question or find info about what I'm looking for. I do not have an EV at this time, just a Jeep Wrangler 4xe. For around-town trips, if I buy an older Leaf (2015-16) with a degraded battery pack (say around 65 mile range), and I charge it, will it reach "full" quicker than a new battery pack of the same original size? In other words, if the charger puts in 12 miles per hour, will my battery pack be full in 5 hours versus 8-9 hours for "new" battery? Or does an old battery take as long to reach "full" and just wastes a bunch of energy to heat or just can't re-charge as fast or ???
Thanks for any info or if you can steer me to another website that has this kind of knowledge.
Kirk

[VStar650CL]

With minor degradation the amount of energy used will fall slightly but there isn't any great effect on charging time. With severe degradation both the time and energy used will go down appreciably, but there's a big caveat attached to that. Charging to 100% has a much more deleterious effect on a degraded battery than a healthy one, and the final 20% of that charge will still take longer than the rest of the charge. I like Elon Musk's analogy about that -- if you get to the football game eight hours early you can pretty much park where you want, but if you get there eight minutes early you'll spend half an hour finding a spot and probably miss kickoff. The same thing happens to electrons when the battery's parking lot is almost full. That gives the owner a Hobson's Choice. Charging to 80% will drop that usable range by more than that, say 50 miles instead of 65, but charging to 100% will eat up the already-degraded battery even faster. So to keep it on the road, you're pretty much stuck with an even lower range than what the car thinks it has.

Keep in mind that a Leaf won't drive indefinitely on a degraded battery without throwing an unclearable code and turning on the MIL. That generally happens at about 5 bars and can make the car unroadable in states which have inspection.

[BakerRV]

Thank you. I was hoping quicker charging to go with the inconvenience of shorter range, but I guess not. Kind of a lose-lose situation.