MG ZS EV Won't charge past sixty percent

[Gadget Geek]

Why only 80%? Why not 100%

Regular 20% to 80% charging cycles are better for battery longevity. Not really a problem if you lease or only keep for a few years.

 

[Tara Jane]

Regular 20% to 80% charging cycles are better for battery longevity. Not really a problem if you lease or only keep for a few years.

Aaaaah ok I didn’t know that

 

[Grumpy]

Why only 80%? Why not 100%

It prolongs battery life. You only need to charge the battery to 100% about once a month to balance the battery cells. Its in the manual.

 

[Tara Jane]

It prolongs battery life. You only need to charge the battery to 100% about once a month to balance the battery cells. Its in the manual.

I didn’t get too far in that manual

 

[Jomarkh]

Why only 80%? Why not 100%

It will depend on battery chemistry if you charge to 80% or 100% unless you need 100% daily.

 

[Gandalfharrow]

Why only 80%? Why not 100%

Charging to only 80% is much better for long term battery health. Only charge to 100% if you are expecting to drive a long distance. It is also recommended that you do occasionally charge to 100% to equalise all the cells in the battery to the same voltage.

 

[Mr T]

Hello everyone, our 2023 MG ZS EV won't charge past sixty percent. This only started last week when putting the charge on charge overnight with the battery around 20%. The last two charges show a display reading charging complete at 60%. The car then stops charging. I tried unplugging and plugging back in several times. Don't know if I am doing anything wrong, grateful for any ideas.
Best wishes
Michael.

Have you set the MG app to charge to 100%?

 

[MikeN]

The first 20% and the last 20% need a lot more power to charge, therefore it is the most economical way.
I then do a 100% charge once a month to balance the cells. Mine is a second Gen ZS Trophy.

 

[Lovemyev]

The first 20% and the last 20% need a lot more power to charge, therefore it is the most economical way.
I then do a 100% charge once a month to balance the cells. Mine is a second Gen ZS Trophy.

Long or standard range face lift Gen 2 model ?.

 

[Coulomb]

The first 20% and the last 20% need a lot more power to charge, therefore it is the most economical way.

? I think you're thinking of the way that rapid chargers take longer to charge the last 20% or so, but that's because the Battery Management System tells the charger to charge more slowly (less power).

There will be a little power used for balancing in the last ≈7% of the charge, but it's fairly low.

The first 20% of the battery (0-20% SoC) doesn't take more power to recharge, but it's best to avoid leaving the battery at that State of Charge, or even getting that low regularly if you can avoid it.

 

[Mr T]

I'm charging my MGZS Trophy 2023 model on a Ohme charger
battery shows 100% but mileage on economy mode only showing 222
Is this because of the cold weather v

 

[Tara Jane]

Yes, without a doubt!
I lost nearly half in the cold - I even took it to the dealership who confirmed this.
They told me basically every person that bought a car from them came back to ask the same thing!
It’s normal… so they say!

 

[Lovemyev]

I'm charging my MGZS Trophy 2023 model on a Ohme charger
battery shows 100% but mileage on economy mode only showing 222
Is this because of the cold weather v

Long Range of course ?.

 

[MikeN]

Long or standard range face lift Gen 2 model ?.

SR gen 2 trophy. By the way, I can’t reset the charge limit back to 80%, is this feature available on this model. The sales rep at the dealer said it was.

 

[drmcw]

SR gen 2 trophy. By the way, I can’t reset the charge limit back to 80%, is this feature available on this model. The sales rep at the dealer said it was.

No the dealer was wrong, that's just for the LR model; for the SR just charge to 100%

 

[MikeN]

No the dealer was wrong, that's just for the LR model; for the SR just charge to 100%

Thanks.

 

[Coulomb]

They take away the ability to change the charge limit to anything less than 100% on the LFP models. Which to my mind is very heavy handed and confusing. Why not just a pop up message saying we recommend charging to 100% most of the time, but still give people the flexibility to part charge if that's what they want? Maybe you only need a quick charge for a short grocery run, and power is expensive at the moment.

The "we know better" mentality is infuriating to me.

 

[Mr T]

Long Range of course ?.

Yes long range

 

[MikeN]

Thanks.

B******s! [ What the dealer said. ]

 

[MikeN]

They take away the ability to change the charge limit to anything less than 100% on the LFP models. Which to my mind is very heavy handed and confusing. Why not just a pop up message saying we recommend charging to 100% most of the time, but still give people the flexibility to part charge if that's what they want? Maybe you only need a quick charge for a short grocery run, and power is expensive at the moment.

The "we know better" mentality is infuriating to me.

Me too. I like to keep charge between 20 and 80% because the first 20% and the last 20% take a lot more power. If MG recommend 100% charging, then why promote 80% for the LR. Just saying…..