[Coral]

Hi, I wanted to discuss about how is better to set charging limit and up to where to be discharged battery in order to keep high capacity after years.
As I see it that our batteries are NCA from Panasonic and is recommended to have it charged up to 80% upper limit and 20% lower limit for long life, that is correct? Others said 90% upper limit and 50% for long life battery,

 

[Kvickstick]

Hi, I wanted to discuss about how is better to set charging limit and up to where to be discharged battery in order to keep high capacity after years.
As I see it that our batteries are NCA from Panasonic and is recommended to have it charged up to 80% upper limit and 20% lower limit for long life, that is correct? Others said 90% upper limit and 50% for long life battery,

With a low range car like the MX30 these recommendations would make the car unusable. I use all the range it was advertised to have. If the batteries are these bad at retaining battery life there is no future for EVs at all.

 

[Thebriggie]

Most research shows 20 to 80% is the sweet spot for for longevity of charge/discharge for EV lithium batteries. What annoys me is manufacturers advertising bluster gives full range and then in tiny teenie writing advises not charging above 90% at regular intervals to maintain the battery life...such as Mazda....so please don't use the full range too often. Fine if you have a larger battery than our 35.5 with only 30.5 usable kw. So the MX30 is not the car for anyone doing regular long journeys and relying on 100% advertised range for year after year. If short hops is your main need with the occasional long drive then the MX30 is 👍. Also if you are only holding on to it for a short period and don't care about future use, albeit yours or the next owner then go for it full whack. I am in the latter camp as I bought it with 120 miles + in mind.
Alan

 

[seasidebaz]

20 to 80% is only 60 miles usable and you can’t really do anything on that. I charge to 100 every time I plug in and run down to the point I think it will become unusable the following day which is usually around the 30% mark.

 

[Kvickstick]

20 to 80% is only 60 miles usable and you can’t really do anything on that. I charge to 100 every time I plug in and run down to the point I think it will become unusable the following day which is usually around the 30% mark.

I charge once a week. ~10% to 85-90%.

 

[Rcalfa]

I charge almost everyday to 70% and try to not discharge under 20%. Usually I use around 30% of battery per day.

 

[Thebriggie]

I charge mine when Tesco, Sainsburys or Chargeplace Scotland have an an available charger as it is free at point of use. So far 45p spent over the last 3 months in charging costs. Regular weekly use 90% charge, longer journeys every second week 100% charge. 🔌⚡💸

Alan

 

[Bert]

I charge almost everyday to 70% and try to not discharge under 20%. Usually I use around 30% of battery per day.

I am also charging till 70%, unless I am planning to go for a long trip.
After two years I do not have any noticeable battery degradation.

 

[michael.sophocli]

I charge 90% when ever it needs it, usually every other day and only to 100% when I need the extra for long journeys, usually twice a month. Ive done 14000 miles in the past year and as been fine so far.

 

[Coral]

I am also charging till 70%, unless I am planning to go for a long trip.
After two years I do not have any noticeable battery degradation.

How you check it battery degradation?

 

[Thebriggie]

Not very easily unless you , as the owner, have a good set of reliable base data as there are so many variables. So you have to go with the data you see on a regular basis.

km's/kw v estimated range v % charge will all give you an indication if you have a figure for the same route with the same weather conditions, same regen, same right foot pressure, same amount of passengers, tyre pressures etc. etc. I could go on and on. That is all we owners can go on to indicate the state of the batteries.without specialist equipment.

Given how recent the model is I very much doubt there should be much, if any, degradation and even if there was just a little bit what can you do? Answer - nothing but adjust your driving style perhaps, pray to the weather gods....unless it drops below the Mazda guarantee levels. So don't worry about it and just enjoy the ride

Alan

 

[ivo_s]

I would be happy to charge to 80%-90% standard, but be able to override it occasionally (preferrably remote via the app). Does anyone have a good workflow for this use-case? Now I just stick to 100% charging to avoid disappointment.

 

[Thebriggie]

The app is only a stop start charge function based on the car settings

Option 1 is within schedule you can set differing charge levels for each day using the 1 to 7 setting option

Option 2 is for remote charging beyond schedule limit, never done it myself as no need to so don't know if it works.

Within schedule set charge limit to 80% for example.

Set manual ac charge limit in the car ev settings to 100%

Once the schedule is complete/inactive then using the app start a remote charge request and see if that goes above 80% heading to the 100%...manual charge. Try it nothing gained nothing lost as they say.

If you want to do it during any overnight cheap rate periods amending the charge schedule settings is the only way as you cannot amend it within the app because as stated it is a stop start function. Assuming you don't want to wake up the early hours if option 2 works

Anyone else got any suggestions?

Alan

 

[MX-35]

Charge it to 100% when range is 160km or less.

 

[h5n1xp]

So I always charge to 80% and plug it in every night, rarely charging from below 60%.

We live on a greenfield new build housing estate, about 4 miles out of the city, so use the car as a runabout popping in and out of town/shops… Our CX-5 was atrocious for that task. The MX-30 is much better suited to this task.

For long distance runs, we take the charge to 100% at the start of the run, and when possible.

 

[Daniel]

I guess I charge 84.5% (30 kWh) to give me 100% range as nominal capacity is 35.5 kWh limited to
30 kWh usable. Careful driving, slow charging speed keeps me fully confident that the battery will have a long and healthy life!

Time will tell 😅

Daniel

 

[Fredy_yco]

I always charge from around 15% to 100% on Mondays and from around 55% to 100% on Thursdays at 11kw for 2.5 years and i have no degradation on the batteries. Mazda already limited the amount of energy so that 100% on the dashboard its not really 100% capacity and 0% its not really 0%. Just speaking from experience don't take as a sure thing.