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Discussion Starter · #1 · (Edited)
Hi I have had my MX-30 since March and I have 8,700Km on the clock right now my longest drive without charging went as follows in Ireland:

Belfast 121km drive same back:
100% Charged when leaving from Drogheda to Belfast speed held limit at 120kmph Motorway all the way on a single charge arrived in Belfast with 12% battery and charged back to 100% in Belfast to Drogheda made i back with 14% battery. trip took about an hour and UK roads are slower when you cross the boarder the highest you come across is 113kmph. Belfast has not 1 CCS charger in the city so best case is 22KW type 2 charges that take forever lucky they are free when you can find one that works up north. full trip cost free because Public charging is free in Northern Ireland which is the reason why the chargers are contently broken and the ones that do work have a queue's of a few hours because no one wants to charge at home as that would cost them money its a bad system.

Galway City 217km drive same back:
100% Charged when leaving from Drogheda to Galway City, Speed limits went from 80kmph to 120kmph CCS chargers all the way and took 4 hours to drive to Galway and slightly quicker coming back
1. First pitstop I reached Mullingar and charge 50KW CCS 30% to 100%,
2. Second Pitstop then I reached Athlone 50KW CCS 29% to 100%,
3. Third and last pitstop at the Galway Plaza 150KW CSS 49% to 100%
I wanted to make sure I had enough battery going into Galway city, on the way back I was way more comfortable so I was only charging to 80% on the same chargers on the way back and was quicker and perfectly fine. weather was a nice worm 30°C so charging was really quick anyways. trip cost me €20 in charging the car there and back.

Dublin City 46km drive same back:
80% Charged when leaving From Drogheda to Dublin, speed limit is 120kmph Motorway the whole way to Dublin, it take 32% there and about the same back I charge when I get home. the whole trip may have cost me €4 when I charge at home.

I have gotten use to knowing when I need a charge and planning my trips out. Also I would say I'd get about 175km range IRL when I am doing under 80kmph or city speeds you might reach closer to the 200km advertised range just this is a very unlikely in my opinion. if you are doing Motorway speeds of 120Kmph I would say your range would be as closer to 130km range from 100% to 0% battery.

I hope this brake down is useful to another paddy on this forum.
 

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Maybe its would be worth considering charging to less than 100% when you are using a fast charger? Like 80%?
Why? You save time. You are nice to your precious battery. Mayby most importantly its just nice to everyone else who wants to use the fast charger. The last 20% are very slooooow. That could be you the next time you re charging, or waiting to charge...
Sometimes you pay per time unit and makes no sense to waste money. Irland is a super nice place. But why is everyone driving on the wrong side of the road??? Heck even the steering wheel is misplaced. And the beer is black???
Cheers from Sweden
 

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Discussion Starter · #3 ·
Maybe its would be worth considering charging to less than 100% when you are using a fast charger? Like 80%?
Why? You save time. You are nice to your precious battery. Mayby most importantly its just nice to everyone else who wants to use the fast charger. The last 20% are very slooooow. That could be you the next time you re charging, or waiting to charge...
Sometimes you pay per time unit and makes no sense to waste money. Irland is a super nice place. But why is everyone driving on the wrong side of the road??? Heck even the steering wheel is misplaced. And the beer is black???
Cheers from Sweden
Hey thanks mate, trust me I don’t charge to 100% all the time I would only do it for long journeys and I don’t use CCS to do so, Also I definitely don’t charge past 80% for my daily Dublin commutes.

I was mainly using the 100% reference to the actual range of the car over guesstimate what lower percentages yield. Also unfortunately when it comes to hogging a charger I usually only spend about 30 mins on a CCS, other wise I use a 7kw granny cable when I can.

I definitely don’t recommend charging Past 80% everyday on CCS, I want to keep my battery healthy longer than a couple years 😅.
 

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The chief mechanic at my local Ford/MAZDA dealership where we bought our GT Sport Tech says don't get too hung up about charging to 100%. He is of the opinion that with the battery already has its own internal circuitry which protects the battery from overcharge and its quite OK to charge fully once in a while ( we only need to charge once a week on our current driving habits). To me this statement is backed up by the fact I have never seen any warnings in the manual or been told anything when receiving the car that charging fully is detrimental to the battery. Iam sure many out there will disagree but as I am only planning on keeping car for 2 yrs and battery is under warranty I shan't get hung up about it.
 

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Discussion Starter · #5 ·
The chief mechanic at my local Ford/MAZDA dealership where we bought our GT Sport Tech says don't get too hung up about charging to 100%. He is of the opinion that with the battery already has its own internal circuitry which protects the battery from overcharge and its quite OK to charge fully once in a while ( we only need to charge once a week on our current driving habits). To me this statement is backed up by the fact I have never seen any warnings in the manual or been told anything when receiving the car that charging fully is detrimental to the battery. Iam sure many out there will disagree but as I am only planning on keeping car for 2 yrs and battery is under warranty I shan't get hung up about it.
That is true, but I think it’s depends on how you get to 100% over how many times you do.

as far as I am aware it’s ok you Granny charge 7kw to 100% or the odd CCS if in an emergency, but the consensus is that if you are using CCS 80% is the battery safe point by most manufacture so prolong the battery’s range.

For me this is my first EV and I have done a ton of homework how to maintain the battery best as possible and most people have driving leaf’s over the years say didn’t make a real difference.
 

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The problem is we just dont know how this will play out. Fast charging is very slow so should be less of a challenge for the battery.
Spent way too much on too many new cars so intend to let the the MX-30 do at least 120 000 km before selling it.
33 633 km to date and no obvious signs of degradation issues. So remain optimistic. But here is the thing. There is less of a margin for degradation in a smaller battery and it is cycled harder.

It takes CO2 to produce batteries and sitting in the yard doing nothing is a waste. Besides avoiding CCS charging to 100% the plan is to let this Japanese dude work a lot😀.
What is your take on that? Caution, be careful 20-80 charging AC or the let this sucker work policy?
 

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Charge 20% to 90% but don't be afraid to use 100% if you need it. I have computed the "usable" battery capacity many times. The absolute maximum I get is 30.5kWhr but more usually 30kWhr. At 30, Mazda plan to use barely 85% of gross battery capacity: a low number in the EV industry. There is already a big safety margin without building in a pile more. As I have written before on this forum, after charging to 100%, the car can't use full regeneration until SOC reduces to 90% so if one charges to 100% then the first 10% of battery capacity will be used less efficiently. I sometimes use it to clean up the mechanical brake discs that get little use otherwise.
 

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That is music to my ears Milkfloat. Mazda's being careful and why not?
My problem is the following. Commute 50 km one way. But if on call might be called back when you are almost back home. To make this work in winter you need to charge to 100%. So do I take another car, dont want to do that, or do you charge to 100% when you are on call? If you tell the nurses that yeah, this took some time but had to stop and charge. What can you do? That will not end well. Did not consider that particular scenario when I bought it to commute...
 

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Charge to 100% and don't worry. Like most of us, you bought the MX understanding that it has a short range. That doesn't mean you don't wish it had another 10kWhr or you occasionally find the limited range to be a nuisance.
 
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