[perrycox]

Hello,
new mazda mx-30 owner here. I would like to ask you guys about general recommendations for the charging.
My question is what's the best practice for the charging when it comes to battery longevity.

Is the slow charging overnight without wallbox the best for the battery ?
Then also do I have to charge it every day even with 70% battery left or wait for lets say 30% ?
Do I have to set charging limit to 90% (80 even ?) How big is the impact of this setting vs default 100% ?
Thank you very much.

 

[VivaMazda]

Generally speaking degradation is less of a problem than many think. If you live somewhere warm try putting your car in the shade
is suggested by many. Wallbox is the most recommended option. Ideally let the battery work between 20 and 80%. Extremes are to be avoided. But with a small battery pack you have to be practical. 100% charging is only recommended if needed for longer trips. Avoid keeping the battery at low and high states of charge if you are not using it, holidays etc. Rapid charging if you need to. On the other hand MX-30 fast charges not so fast, so probably not too bad + with temp control. Using the car a lot does not seem to be a major problem.👍 Time is a factor so again use your car. Check out Geotab, battery degradation on line. Lastly dont worry, enjoy your MX-30.

 

[Marcel21674]

Generally speaking degradation is less of a problem than many think. If you live somewhere warm try putting your car in the shade
is suggested by many. Wallbox is the most recommended option. Ideally let the battery work between 20 and 80%. Extremes are to be avoided. But with a small battery pack you have to be practical. 100% charging is only recommended if needed for longer trips. Avoid keeping the battery at low and high states of charge if you are not using it, holidays etc. Rapid charging if you need to. On the other hand MX-30 fast charges not so fast, so probably not too bad + with temp control. Using the car a lot does not seem to be a major problem.👍 Time is a factor so again use your car. Check out Geotab, battery degradation on line. Lastly dont worry, enjoy your MX-30.

The manual says nothing about this subject. So i asume that it's no problem loading to a 100%.
if it was a problem i think they would mention it in the manual, to avoid warranty claims.
What i know from RC flying (drone). Litium batteries don't like being stored at low or high loading cappacity's. If you store them for a long period of time, you keep them best at 50 a 60% charge. They also don't like to be deep drained, but a 100% loading is no problem.
At last the temperature of the batteries is very important, don't let them get to hot. It's killing for the battery.

 

[VivaMazda]

Marcel you might well be right. But many including Elon Musk recommends charging to 90% I seem to remember. VW recommends 80%. Its tricky to study and know for sure? Degradation is a slow process. Guessing your drone has a less advanced Battery Management System and no liquid cooling. With the 8 year guarantee, standard in the business, it would seem Mazda is pretty confident in OK longevity.

 

[Weljo]

I usually only need a recharge once a week.
My charger allows me to charge at double rate (2 Phase into 1 Phase at approx 24 Amps charging).
It also allows me to revive (recondition) the battery.
My finding are: from approx. 25% to 90 % gives me about 175 kms (90% should be 180 kms).
This was before reviving the battery.
If I let the battery go down to some 6-10%, the 90% charge gives me 192 kms.
This is after I revived the battery.
Charging using "Battery Care", NoFullCharge and PowerBoost.
Usually the battery charging from 10-90% takes a little over 5 hours overnight.

Charging up to 90% gives no problems.
However charging over 80% decrease the charge speed to avoid heat issues, especially when using DC charging.

 

[VivaMazda]

Guess the charge rate is limited by the car's charger. 6,6 kW or something like that. So if your charging away from home at a 22 kW charger you should max out the AC charge rate for the MX 30. Whats this wallbox?called? You are happy with it it would seem?

 

[Weljo]

Guess the charge rate is limited by the car's charger. 6,6 kW or something like that. So if your charging away from home at a 22 kW charger you should max out the AC charge rate for the MX 30. Whats this wallbox?called? You are happy with it it would seem?

The make of this charger is AccellEV, type 2-Phase into 1-Phase 6 kW+.
There also is a version for 8 kW.
One will need a 3-Phase home circuit.
Product of a Polish company EVTUN.com.
You can also find them at Accelev - Startpagina | Facebook
I am very content with performance and features.

 

[perrycox]

Thank you guys, I set max battery charging to 90 %, I will use slowest charging and eventually get a wallbox.
But I hope Mazda is aware of their small battery and already has some limitations when it comes to charging. Being Mazda the last thing I would want is rapid degradation of my small battery.

 

[Weljo]

When charging at home you can use charging as fast as your car allows (approx. 6 kWh).
When using an charging station en route, choose max. 40 kWh or a bit lower. Fast or Xtra fast charging will only raise your charging bill and has no effect as the car maxes at 6 kWh.

Don't be afraid of degradation. Most batteries will live much longer that the warranty period without much degradation.
And... if you have the AccellEV charger mentioned previously, you also can "refresh" the battery from time to time, giving it a longer life at minimal degradation.

 

[KM1967]

sorry to reply to old thread, but I can't square (and maybe it's just semantics)

"When using an charging station en route, choose max. 40 kWh or a bit lower" and "Fast or Xtra fast charging will only raise your charging bill and has no effect as the car maxes at 6 kWh."

Most CCS charging points I see here in Germany advertise from around 50 kWh or higher. I'd consider them "fast chargers".

If "standard" / "at-home" Type 2 chargers cannot charge above 6 kWh, that limit surely does not apply to the CCS chargers? Even Mazda marketing says 20%-80% charge is achievable in 36 minutes, which rough equates to charging at 36 kWh ? If not with the CCS chargers, how ?

 

[VivaMazda]

sorry to reply to old thread, but I can't square (and maybe it's just semantics)

"When using an charging station en route, choose max. 40 kWh or a bit lower" and "Fast or Xtra fast charging will only raise your charging bill and has no effect as the car maxes at 6 kWh."

Most CCS charging points I see here in Germany advertise from around 50 kWh or higher. I'd consider them "fast chargers".

If "standard" / "at-home" Type 2 chargers cannot charge above 6 kWh, that limit surely does not apply to the CCS chargers? Even Mazda marketing says 20%-80% charge is achievable in 36 minutes, which rough equates to charging at 36 kWh ? If not with the CCS chargers, how ?

Im guessing they want to warn folks to use Ionity when any 50 kW charger will do exactly the same job. Many times for less money?

 

[Weljo]

The Mazda charging system determines the maximum charge rate (6 kWh) not the type of charger used.
So if on the road and need charging, use the charging terminal that has the lowest rate (e.g. 40 kWh which is most commonly present in the EU). If 40 kWh is not available, then use the next higher available rate.

 

[KM1967]

The Mazda charging system determines the maximum charge rate (6 kWh) not the type of charger used.
So if on the road and need charging, use the charging terminal that has the lowest rate (e.g. 40 kWh which is most commonly present in the EU). If 40 kWh is not available, then use the next higher available rate.

This seems to be just repeating confusing/partially true advice.

What's the point of using any charger rated above 6 kWh is the car's charging system cannot use above 6 kWh, no matter what connection / charger is used?

I get it that 150 kWh charger isn't going to be any faster than 40 kWh, so don't waste money paying extra for higher rated systems, but the claim "Mazda charging system determines the maximum charge rate (6 kWh)" seems to missing various important caveats.

e.g. is following info regarding "Fast charge" wrong ?

Mazda MX-30 SUV | EV Charge + | EV Specifications

Mazda MX-30 SUV | EV Specifications | EV Charge + | Acceleration, Top Speed, Electric Range, Total Power, Total Torque, Battery and Charging...

evchargeplus.com

Charge power:	6.6 kW AC
Charge time:	5h 45min
Charge speed:	35 km/h
Charge speed:	22 mph
Fast charge power:	50 kW AC
Fast charge time:	30min (10-80%)
Fast charge speed:	230 km/h
Fast charge speed:	143 mph

 

[Milkfloat]

Change the fast charge power to DC and you have the answer to the confusion. As written in other threads, regardless of AC charge capacity, the actual charge is limited to 6.6kW by the on-board controller. The DC charge is limited to about 37.5kW, again, regardless of the supply capacity. (As long as it is greater than 37.5kW of course)

 

[KM1967]

Thank you. So the "Mazda charging system determines the maximum charge rate (6 kWh) not the type of charger used." statement was indeed misleading, and would have been been better separated into 2 statements, one around AC/Type 2 charging and one around AC+DC/CCS charging, each having it's own limit imposed by the car's own, internal charging components.

 

[Milkfloat]

Yes, with EV's, their internal controllers always define the upper limit for charge rate. With the small battery and, more importantly, Mazda's conservatism and perhaps cost saving, the charge rates are set low. To put it into perspective, the Evoque PHEV with a battery less than half the size of the MX-30 will charge faster on DC.

 

[jceedv]

Something I found while trying to learn more about MX30. Mazda recommends limit to 90% (around 5:15)

 

[VivaMazda]

Thank you. So the "Mazda charging system determines the maximum charge rate (6 kWh) not the type of charger used." statement was indeed misleading, and would have been been better separated into 2 statements, one around AC/Type 2 charging and one around AC+DC/CCS charging, each having it's own limit imposed by the car's own, internal charging components.

Wechselstrom max 6.6 kW
AC to DC wechsel to gleich converter in car
Gleichstrom CCS max 37.8 ca kW controlled by the Battery Management System BMS