Battery Cool-Down Before Charging

I'm curious why you think there must be a delay at all?

 

i suppose you shouldn't charge warm batteries, but id i have somewhere to go, i just throw it back on charge. granted, it doesn't happen on a regular basis.

 

Car won't charge if batteries are in an environmental condition outside of the parameters...so plug in as normal and let the car decide.

 

thank you!

 

If you're worried about battery life, the best charging strategy is to have the car just finish charging right before you go and drive it. Of course, making this happen in real life is easier said than done if you want to charge more than once a day.

 

the only concern I have and avoid is letting the car, fully charged, sit in the sun.

 

I don't think it's as big of worry in the PiP as it would be in the Leaf since the PiP doesn't let you charge to 100%.

 

I

The Leaf doesn't either. Although it does let you charge to 93% I believe, which I still think that is too much.
Glad to hear the PiP won't let charging start while temps are too high. I was very surprised the Leaf doesn't have a sensor set up to prevent charging while too warm. It is a pretty basic bit of software/hardware I would think.

 

The "cold soak" helps with longevity. Batteries like to rest, rather than being recharged immediately after having just been depleted. It's not necessary. But if there's the opportunity, take advantage of it with the timer or Entune.

 

do you have data to back up this "theory?"

 

Not that I don't believe you, but where did you read that? I've always read it goes to 100%.

 

That came from Toyota itself, during the PHV reveal last September.

 

got the link to that article?

 

"Resting" only helps lithium batteries in that it potentially allows them to cool off and allows them to spend more time at a lower SOC - both of which reduce inevitable capacity degradation.

What Nissan calls "100%" is only about 93-94% full. Nissan lets you use almost 90% of total capacity of the pack - a bit more than 21 kWh out of 24 kWh when the pack is new. Of course, they recommend that you use the "80%" "long-life" charge mode, don't leave the car sitting at "100%" for long periods of time, and don't constantly top off the battery back to "100%".

Allowing the end-user to charge to a true 100% SOC would today's common lithium chemistries would quickly result in capacity degradation leaving usable capacity than by limiting max SOC to something lower.

 

Not that I don't believe you, but where did you read that?​

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What specifically are you referring to?

 

all of it. I see a lot of explaining, but no facts or articles to back it up

 

Demanding, aren't we?

Lithium battery calendar life: Lithium battery calendar life temperature soc
Nissan LEAF battery info: Nissan Leaf Wiki - MyNissanLeaf

 

Thanks! That explains a lot. I'm glad I decided to fork over the $15.00 a month to my landlord so I can charge at my apartment at night.