MG ZS EV degradation test after 2 years/25k km

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[snuggles]

From minus 30C in Norway to 39C in Thailand…I’d be suffering degradation

[bernardhilton]

There is a new version of the ZSEV now with a bigger battery. Please test that. Thanks Bjorn, lucky you in that warm climate. In Northern Europe we are beginning to freeze. 👍👍👍

[davidofford]

Just got to sat 20 seconds in . . . looks great. IT IS great to see you in Thailand, in every way. Best wishes.

[jacquelinebrunder]

Battery degradation is negligible where a decent battery temperature control system is fitted. The reason the Leaf battery degradation is around 3% per year on the older cars is simply because they have no battery temperature controls.

[ryks]

Thats realy good to know :) i have a MG ZS EV Longrange 2022 on the way :) an consider the battery size and how much easyer that is to ceep in right battery range it problebly takes much longer before you can se any degradation :)

[paulaschofield]

Good to see that the MG is holding it battery. We have a 2017 Ioniq 28kWh and have just passed 100, 000km and it's now 5 and a half years old, and according to EVNotify and also the range we are getting when full, we don't have any degradation of the usable battery. Looking at the information in EVNotify it also looks as though we have only used half of the hidden 10% of the battery, so we could assume, if the degradation doens't speed up, that we could get another 100, 000km and 5 and a half years of driving before the degradation starts to impact the range.

[Colin]

Degradation will happen over time for sure, but then again so does a petrol engine, so no big deal to be honest !

[bruceeyers]

My MG EV shows 96.9% state of health on obd after 1 year and 17K km in New Zealand. Average temperatures similar to Europe .Still better than the 2 Nissan leafs previously owned .

[hellopsp]

Pretty decent. It’s definitely the TOP buffer you said.

If MG had software read out of SOH of battery it would be a quicker way to find out degradation tbh.

Start at like 110% SOH so you get extra 10% buffer

[navinchandran]

A very informative video and would be awesome to see a range test on Model 3 LFP cars after 25k km. I had an MG and sold it at 10k kms and the range was still intact at 262kms after driving for that period which indicates there is a hidden buffer. Now I have switched to Tesla and find the battery efficiency on Tesla is unmatched. I am getting 11.6kwh/100 kms and in MG the best ever was 14kwh. I am from NZ and it's currently summer here. Look forward to seeing more great content from Thailand.

[robenglish]

Thanks for the test, will look in to the MG brand when current lease goes out!

[DanBoro]

Will you be doing an update/range test on the new MG ZS EV Long Range ?

[and]

Hi Bjorn, take us to the lovely Thai beaches please.

[jpdj]

(Introduction) In solid state memory (like SSD and flash memory cards), each memory cell rewrite is a bit of brown-out - plainly called "wear", elegantly called "degradation". The extent to which this happens is highly determinant of price (next to mainly speed and available to the user capacity).
Manufacturers publish memory life time in "TBW" as this indicates how many times a cell can be rewritten and the firmware in the cards does a "wear leveling" process. How do we get cards that last longer? (A) with better and much more expensive memory cells or (B) through "over provisioning". In over provisioning, you may have 50% more capacity than visible to you and it is used in the wear leveling process. This could be done with cheap memory cell tech to get better TBW or with expensive cell tech to get enterprise or data center class SSD.

(Question) Is it possible that the battery bank in the ZS EV is configured/sold with a level of over-provisioning of battery cells that are used in a wear leveling process? As the battery is the most expensive part of the car (assumption) this would be reflected in the price somehow, but as the car is a complex package that would be hard to identify.

[jhchooo]

Doesn't this car have LFP battery? LFP's degrade slower in the beginning than Nickel based LIthium cells

[alternive]

I wonder how quick degradation becomes apparent with minimal (or zero) fast charging?

[shyrwall]

EQS now available in Thailand. Booth at central world bkk.

[kbhasi]

(1:02) I won't be surprised if that screen is also present on the version sold in Singapore.

[therealnd]

Will you be doing any reviews while in Thailand, I believe the ORA Cat is available there, a car coming to uk/Europe early in the new year.

[theproffessional]

I'd guess that it's more of a top buffer being eaten away if it charges slower towards the end, but if it charges the same it's most likely a bottom buffer.