Silly charging question

Orebro

Is it ok to leave a leaf plugged into my workplace charger even if it gets to 100% early in the day? It's about a 15 minute walk from my office so would ideally just like to plug in when I arrive and forget about it for the day.

Evd-Burner

Orebro wrote:

Is it ok to leave a leaf plugged into my workplace charger even if it gets to 100% early in the day? It's about a 15 minute walk from my office so would ideally just like to plug in when I arrive and forget about it for the day.

Nothing wrong with that other than leaving it sit at a high state of charge all day. Why not set an end timer and npt a start time, have it at 100% for when you need it?

Gumbo

Orebro wrote: »

Is it ok to leave a leaf plugged into my workplace charger even if it gets to 100% early in the day? It's about a 15 minute walk from my office so would ideally just like to plug in when I arrive and forget about it for the day.

I would aim to stop it at 100% as soon as, and maybe once a week leave it to sit all day to balance the cells.

I really need to do this soon as I haven't met it sit over night once since I bought it.

Mope

This question got me thinking... I am plugging in my IONIQ each evening, even if next day I have enough to go to work and back without charge. Same logic applies? I should not just keep it at 100% all night? I've seen there is a way to schedule charge times, but they are literally times when to start or stop charge, nothing about "car knowing automatically when to start charging to get to 100% by the time I need to drive off".

Please advise

cros13

Mope wrote: »

This question got me thinking... I am plugging in my IONIQ each evening, even if next day I have enough to go to work and back without charge. Same logic applies? I should not just keep it at 100% all night? I've seen there is a way to schedule charge times, but they are literally times when to start or stop charge, nothing about "car knowing automatically when to start charging to get to 100% by the time I need to drive off".

Please advise

It'll be grand.

Mope

Love the answer

I strongly believe that manufacturer thought about this scenario of night charging and car has some sort of stop mechanism and not taking more charge after 100% is reached. Similar to phones? :]

cros13

Yup.

Just don't leave it sitting there for weeks on end without using it.

Other than that it's better to have the extra utility of a charged car.

That's the way I've done it and in almost 250,000km of EV driving I've not had cause to regret it.

cros13

cros13 wrote: »

Yup.

Just don't leave it sitting there for weeks on end without using it.

Other than that it's better to have the extra utility of a charged car.

That's the way I've done it and in almost 250,000km of EV driving I've not had cause to regret it.

But not the one vehicle of course ........ big difference.

Calahonda52

Orebro wrote: »

Is it ok to leave a leaf plugged into my workplace charger even if it gets to 100% early in the day? It's about a 15 minute walk from my office so would ideally just like to plug in when I arrive and forget about it for the day.

If the spot is yours to stay in all day then use the onboard timer to have it ready for you at going home time, I have that for the home charge so car is ready at at 05:50: both charged and heated

Exactly what I do at work, charger activates at 4pm and fully charged and balanced by 8PM when I leave.

cros13

Deleted User wrote: »

But not the one vehicle of course ........ big difference.

Sure ~60k on both Leafs... and I'm over 120,000km on the i3 now, my cars don't get an easy life... but the worst of the batteries is still well above 90% capacity (having come from the factory with between 95-97%). For my mileage that indicates I'm going to get my money's worth.

reboot

In some parts, it's no good practice to block a bay with a fully charged EV, and I have read of fines being levied.

yannakis

reboot wrote: »

In some parts, it's no good practice to block a bay with a fully charged EV, and I have read of fines being levied.

Fine on a private (company) charger would probably be difficult to apply. I agree it's antisocial though :pac:

OP, what would you do if you arrived to work one day and another lad had his car plugged in until the end of your shift? :rolleyes:

KCross

Orebro wrote: »

Is it ok to leave a leaf plugged into my workplace charger even if it gets to 100% early in the day? It's about a 15 minute walk from my office so would ideally just like to plug in when I arrive and forget about it for the day.

I think its down to the numbers.
What is the ratio of chargers to EV owners in the company?

Can other users pull in to the charger alongside you? Once your charge is complete they can simply unplug you and plug in themselves as long as you haven't set the charge port to lock.

Orebro

We all know each other there, no worries about that at all, someone could call me to move for example, or vice versa. Right now we have one more charge point than there are EVs. Obviously completely different to public charge point behaviour.

KCross

Orebro wrote: »

We all know each other there, no worries about that at all, someone could call me to move for example, or vice versa. Right now we have one more charge point than there are EVs. Obviously completely different to public charge point behaviour.

Ah, I'm with you now. Your question is more about whats good for the battery rather than charger etiquette and there are more chargers than EV's.

In that case its OK to leave it plugged in. However, if you are leaving at the same time everyday you should consider using the timers or remote activation via the phone app so that it chargers in time for you to leave rather than leaving it at 100% for long periods. Its impossible to tell how much of an effect it would have on the battery but its generally considered best to reduce the amount of time the battery is at 100%.

BoatMad

KCross wrote: »

Ah, I'm with you now. Your question is more about whats good for the battery rather than charger etiquette and there are more chargers than EV's.

In that case its OK to leave it plugged in. However, if you are leaving at the same time everyday you should consider using the timers or remote activation via the phone app so that it chargers in time for you to leave rather than leaving it at 100% for long periods. Its impossible to tell how much of an effect it would have on the battery but its generally considered best to reduce the amount of time the battery is at 100%.

True, but the 100% refers to days ( like a week or more ) , not a few hours

KCross

BoatMad wrote: »

True, but the 100% refers to days ( like a week or more ) , not a few hours

The unknown for me was whether one stint of 100% for a week is the same as 12hrs at 100% for 2 weeks. Is that the same or not to the health of the battery?

BoatMad

KCross wrote: »

The unknown for me was whether one stint of 100% for a week is the same as 12hrs at 100% for 2 weeks. Is that the same or not to the health of the battery?

Full for a given period is worse then full for twice as long but for half the time

Various effects occur , anode plating , dendritic growth , and worse , increaed parastic activity when Li are fully charged , breaking that cycle with a discharge helps

However quantifying this in terms of an effect on your particular battery would be impossible , it's far more likely , that usage factors will overshadow these effects

Everything adds up !

Mope

So basically, you guys could write up 5 DOs and 5 Don'ts and up vote to sticky in regards - How to look after your EV the best or smth ðŸ‘🀓

BoatMad

Mope wrote: »

So basically, you guys could write up 5 DOs and 5 Don'ts and up vote to sticky in regards - How to look after your EV the best or smth ðŸ‘🀓

No , because in reality we have no real data to assign a priority or weighing to any given battery Dos and Donts. There is already too many myths and half truths and voodoo science/advice floating around already.

Just use the car, stop worrying about the battery

unkel

+1

And we all have a decent warranty. And in practice there's a bit of battery degradation over a very long time. Nothing to worry about.

BoatMad

unkel wrote: »

+1

And we all have a decent warranty. And in practice there's a bit of battery degradation over a very long time. Nothing to worry about.

Absolutely , it's not like loosing a bar invalidates the car