30kW Nissan Leaf: what are the issues with leaving it charged above 80% for a week?

Calahonda52 · 11-06-2018 5:14am #1

Going on hols for a week tomorrow night, get back at 02:30 in the morning and am on the road at 05:30 same day on a trip that I need near 100% for the return trip. Cannot rely on charging either on route or at location.
Do this journey monthly so know the CP issues only too well

Don't have home charging so need to leave car charged from tomorrow evening.

What damage will I do?
I have read here that leaving it above 80% for a period will do harm.
What is the issue?
Thanks as always.

Padraig Mor · 11-06-2018 8:11am

Should be fine. Wouldn't be worried unless it was 90%+.

Calahonda52 · 11-06-2018 8:22am

Padraig Mor wrote: »

Should be fine. Wouldn't be worried unless it was 90%+.

Thanks.
What is the issue with above 90?

goz83 · 11-06-2018 9:58am

I dont think leaving it at 100% for a week will be harmful if its an occasional thing.

ELM327 · 11-06-2018 10:30am

Remember, even at 100%, the true SOC is normally around 97% (can be checked on leafspy)
Not best practice to store car at 100% (50% is best)
But for a few days as a one off it won't make a blind bit of difference.

11-06-2018 9:16pm

If you don't have to leave it at 80% + then leave it at 40-50%.

Batteries get stressed the longer they are at high stated of charge and at higher temps. I can't imagine a week would do much harm but I wouldn't do it anyway.

I remember the manual of the 34 Kwh stated you can have warranty issues if it's left at 100% for two weeks or longer or less than 20% , can't remember exactly.

30kW Nissan Leaf: what are the issues with leaving it charged above 80% for a week?

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