[srimedico]

Originally Posted by GTO

Thanks for sharing the real world range. This has so much more informational value than the useless ARAI stats.

Req: Consider to add the below details to the first post of this thread.


Additional details to the August 2021 trip.

12 %, 387 kms. For 12% soc to become 100% ., Tata
had to pump in 35.2 kwh only?!



Another Trip details
January 2021., ~ 12000 kms on odometer, night+day journey midnight 12 am to 4 pm , hot climate, 425 kms Tirupati to ibrahimpatnam , not sure about the altitude, Head lights on at night , Intermittent AC on & off for windshield fogging issues + sultry passenger needs, windows rolled up, this time no journey behind slow moving large trucks - so more air resistance, 5 Adults with Heavy Luggage, Eco, kers3, Cruise Control @ 29 kmph only this time , multiple stops of ~120 minutes, 100% (poorly balanced through granny charger) to 4%, 425 kms

Originally Posted by GTO

I can understand the obsession with range, but please also enjoy the drive . After all, we live to drive. Drive normally, enjoy your machine, the road and the views.

I do. The hypermiling trips are around 6 only, when the situation demanded. Here are some of my other drives. One can observe the Maximum speed, how many kms travelled at 120kmph etc.,


In this trip May 2021 , 164 kms Hyderabad to Suryapet, 7.40am to 9.40 am,Average climate, AC on, 4 Adults, Eco, kers3, cruise control varying between 90 to 137 kmph. SOC 95% to 17%, 164 kms


Another trip detail in attachment., depicting max speed of zs ev - 160 kmph



[

[utkarsh.shetty]

Originally Posted by manjubp

If the electricity is from hydro or solar then what you said is correct. However, if it is from fossil fuel then the net CO2 emission save is very low maybe 20-30% of what is shown. You need to consider end to end. This is one of the reasons Japan is still taking EV in slow phase.

absolutely and the Governments all over should instead focus on the Hydrogen Fuel cell tech, than building infrastructure for EVs with batteries.

The amount of work and infrastructure building EVs are going to require ( for charging & Electricity ) compare that to the mining and industrial process Battery manufacturing will require, I am afraid it won't make as much difference as we are expecting.

However, I wonder, what about mega Fuel Cell units generating electricity? Aren't these possible? ( just a quick thought that hit my mind while writing this )

[rageshgr]

Lights OFF at 3 am ? Please do not engage in dangerous driving practices in the name of hypermiling

And the third trip. I feel bad for the 5 passengers who had to endure 16 hours at 29 kph with intermittent no AC

[StarrySky]

Originally Posted by srimedico

Additional details to the August 2021 trip.

12 %, 387 kms. For 12% soc to become 100% ., Tata
had to pump in 35.2 kwh only?!

Based on the trip computer, you averaged 10.8km/kWh. If that and the distance displayed are both accurate, then the total energy usage was 387/10.8 = 35.82kWh.

[srimedico]

Originally Posted by manjubp

If the electricity is from hydro or solar then what you said is correct. However.

We do have Solar setup. Which is not the case of public DC chargers I used for trips.

Originally Posted by ABHI_1512

while using an electric car on the road does save on environmental pollution but same can’t be said about the process through which a battery is manufactured.

According to some researchers, manufacturing a electric battery for a car actually emits more than 70% CO2 then while manufacturing a conventional car running on fossil fuels.

Hope we get better greener tech soon.

https://youtu.be/mk-LnUYEXuM

Seen this Video in our ZS EV India Group long back by Hemank . Never shared it anywhere, as I don't know if its accuarate or not . But I would settle at not polluting immediate Environment for better Air Index in human dense population., and trying to walk/cycle shorter distances. I wish prospective car buyers won't sway from EV adoption or future greener adoptions, solely basing on certain researchs which might have ulterior motives.

Originally Posted by rageshgr

And the third trip. I feel bad for the 5 passengers who had to endure 16 hours at 29 kph with intermittent no AC

Appreciate your emotion. Thanks. Would share it with them also.

Originally Posted by lina

Headlights off at 3AM in the morning on hills?

So, please for everyone's sake, never drive without headlights!

Originally Posted by flanker

No one should drive without headlights (and tail lights) in the night.

From 3 am till dawn., The Route is well lit National Highway . DRLs on. Plus, the hazard warning lights are on. Speed is less than 40 kmph. Kers 3 will lit up back red light upon deceleration. I travelled on the left lane.

Originally Posted by Axe77

I am really keen to hear of stories of real world range in real conditions with no specific steps being taken to maximise juice.

Originally Posted by sagarpadaki

. Especially after paying 20+ big ones on a car.

https://www.team-bhp.com/forum/elect...ml#post5159339 (Battery & range calculation of MG ZS EV | Real world statistics)

Originally Posted by Vijay T

Hope, you will provide real world range with normal speed & AC on.
.

I usually get 260 - 290 km. I always use Eco., KERS 3 only (only in this kers level, rear Red light lit up upon disengaging accelerator/cruise control )

[lina]

Originally Posted by srimedico

We do have Solar setup. Which is not the case of public

From 3 am till dawn., The Route is well lit National Highway . DRLs on. Plus, the hazard warning lights are on. Speed is less than 40 kmph. Kers 3 will lit up back red light upon deceleration. I travelled on the left lane.

This reasoning is not helping. You should never drive with your hazard lights on. Hazard light means you have stopped on the road. Please never do this again. Just switch on headlights and drive normally. Infact you have auto-headlights, just dont switch off anything.

Originally Posted by AirbusCapt

EV are efficient in stop and start traffic (due regen) and provide the worst range on constant speed (highways). You getting around 400 kms during the most inefficient usage cycle is commendable.

You are not entirely correct. EVs, like any other car will give best range at a constant speed. That constant speed will be a lot less than an ICE car and even lesser for a car such as the ZS which is not particularly aero-dynamic.

EVs are more efficient than ICE cars in stop and start traffic, but storing energy back in the battery while stopping will result in losses. So, constant low speed is the most efficient.

[lina]

Originally Posted by utkarsh.shetty

absolutely and the Governments all over should instead focus on the Hydrogen Fuel cell tech, than building infrastructure for EVs with batteries.

The amount of work and infrastructure building EVs are going to require ( for charging & Electricity ) compare that to the mining and industrial process Battery manufacturing will require, I am afraid it won't make as much difference as we are expecting.

However, I wonder, what about mega Fuel Cell units generating electricity? Aren't these possible? ( just a quick thought that hit my mind while writing this )

The investment in creating hydrogen infrastructure will be insane. There really is no incentive to get this done. Transporting electricity on the other hand is a lot easier to do.

I feel Battery Electric vehicles will win in the long run. The battery technology itself will need to improve to lighter and more sustainable materials but carrying/transporting fuel will mostly die out in the long term

[flanker]

Originally Posted by lina

EVs are more efficient than ICE cars in stop and start traffic, but storing energy back in the battery while stopping will result in losses. So, constant low speed is the most efficient.

I agree, also on highway using level 3 regen will waste more energy. I get better range with level 1 in most scenarios. Level 3 is only for stop and go traffic. On certain roads/stretches I would prefer to switch off regen but this option is sorely a miss in the ZS EV. In most drives I keep toggling between level 1 and 3. I really like the Kona's implementation of regen pedals - it is something I miss the most in the ZS EV. The press and hold the steering pedal to stop in the Kona is another great implementation.

[Axe77]

Originally Posted by srimedico

From 3 am till dawn., DRLs on. Plus, the hazard warning lights are on. Speed is less than 40 kmph. Kers 3 will lit up back red light upon deceleration. I travelled on the left lane.

I’m sorry to sound negative but honestly driving with hazard lights on at an ultra low speed is simply not very helpful. There is a reason a car is given headlights and an entirely different reason why its given hazard lights. To be driving with DRLs and hazard lights on to compensate - I really don’t know what to say.

There are many nuances to safe driving. My request is that obsession with hypermiling should not be at the cost of adopting wrong driving habits.

On our MH expressways too many drivers have a horrible habit of driving through tunnels or in the rain with hazard lights instead of fog lights as they should.

Anyway, thank you for sharing consumption in various situations. It is most informative if nothing else for prospective EV adopters.

[srimedico]

Originally Posted by lina

This reasoning is not helping. You should never drive with your hazard lights on. .

Originally Posted by Axe77

. To be driving with DRLs and hazard lights on to compensate - I really don’t know what to say.

There are many nuances to safe driving.

I do realise that, I have done fundamentally wrong thing, for one instance for 2.5hours . Won't repeat it. Thanks for your time

Originally Posted by BennyA23

Is this your daily driver?

Yes

Originally Posted by DCharger

With windows rolled up and no AC, didn't you find any ventilation issues(even with fan running)?

As solo occupant, didnot.

On one instance with 5 adults, yes. Managed by Intermittent AC

Originally Posted by adityadeva

Could you you please shed some light on the change in the charging infrastructure from the time you bought the car and now.

Significant. Had seen establishment of 4 50kw dc chargers., 5 25kw dc chargers in a radius of 300kms., over this 1.5 year duration

Originally Posted by tharian

What do you refer to as poorly balanced? I
.

After 100% charging., granny charger balances the HV battery for ~5 hours, yields more range than a dc 100% charge. Don't know the technical details of this behaviour.

Originally Posted by AirbusCapt

is: if you don't discharge to zero and don't recharge till 100%, you keep the cycle intact. Ideally discharging till 20% and recharging till 90% will prolong your battery life.

So, if I charge from 10% to 100%, will it still keep the cycle intact?

Originally Posted by StarrySky

.

So, the degradation seems to be about 1.7kWh (or 4% of the capacity during the first test).

Hmm. Ok thanks. shouldn't the different driving conditions factored in for this calculation?

Originally Posted by flanker

The BMS has a buffer, the Indian version of ZS EV has a less buffer and hence the pack voltage at 100% charge is near at 455v. In UK (and EU) they have updated the BMS software to drop the pack voltage to 450v as the top buffer wasn't sufficient. I think it is best to not charge the battery to 100% often.

Originally Posted by StarrySky

Based on the trip computer, you averaged 10.8km/kWh. If that and the distance displayed are both accurate, then the total energy usage was 387/10.8 = 35.82kWh.

So does this mean ZS EV has ~10% buffer?

[DCharger]

Originally Posted by srimedico

In this trip May 2021 , 164 kms Hyderabad to Suryapet, 7.40am to 9.40 am,Average climate, AC on, 4 Adults, Eco, kers3, cruise control varying between 90 to 137 kmph. SOC 95% to 17%, 164 kms

Another trip detail in attachment., depicting max speed of zs ev - 160 kmph
[

I frequently do this highway(420km approx) on my HondaCity or a GLC220D. I start around 3am from Hyderabad and reach Rajahmundry by 8.30am for breakfast(with almost negligible breaks to stretch), with speed averaging @110-120. I always have a very good sleep the night prior and prefer this early morning drives as the entire stretch is 4-lane with a divider till destination. If I start after 6am, it takes me more that 8 hours due to traffic and breaks. This is one of those best maintained highways(Hyderabad to Vijayawada) in India.

[flanker]

Originally Posted by srimedico

So does this mean ZS EV has ~10% buffer?

You charged the battery from 12 to 100% - that is 88% and it used 35.2kwh. This would mean the total capacity of your car battery is roughly 40kwh (35.2 /.88). As far as I know that actual usable capacity of a new MG ZS EV battery is 42.5kwh and 2kwh is top and bottom buffer.

The 2.5kwh (5%) less in your case can be combination of degradation, imbalance and slight error in displayed figures

[StarrySky]

Originally Posted by srimedico

Hmm. Ok thanks. shouldn't the different driving conditions factored in for this calculation?

This should be factored in already in the efficiency data (km/kWh) in the trip computer.

Originally Posted by flanker

As far as I know that actual usable capacity of a new MG ZS EV battery is 42.5kwh and 2kwh is top and bottom buffer.

This matches closely with the trip computer data from the first trip, based on which the battery capacity is roughly 42.40kWh.

[Lobogris]

Originally Posted by Shreyans_Jain

As good as the range you have achieved is, comfortable long distance touring in EVs is still some time away. If I have to drive for 400km without AC at 40kmph cruise, I’ll go mad. Maybe there weren’t any fast charging facilities in your route. Any car has to be able to deliver minimum 250km range with AC at 80-90kmph to be practical for intercity use.

I drive my ZS EV normally with AC (though set to moderate) and headlights used as needed. I drive gently meaning slow acceleration, avoiding needless overtaking, predicting stops and slow downs etc. That is how I drive all my cars anyway and I always get more than the officially advertised mileage. For example on my Volkswagen Passat, I can get around 25kmpl on long trips. The ZS is driven at around 80 to 90 kmph on highways and I routinely can get around 350 to 400 kms on one charge. There are plenty of fast chargers on most major routes and I often do outstation trips. As an example, from Delhi you can easily go to Chandigarh, Ludhiana, Agra, Jaipur, Haridwar, Shimla, Nainital and Mussoorie with fast chargers available. Routes like Delhi Chandigarh have around 8 fast chargers. Delhi NCR has around 100 fast chargers! Delhi to Bombay or Goa is quite easy now with plenty of fast chargers en route.

Originally Posted by ABHI_1512

One thing that I just want to mention here that while going electric is commendable and that it gives this false sense of not polluting the environment. Truth is, while using an electric car on the road does save on environmental pollution but same can’t be said about the process through which a battery is manufactured. According to some researchers, manufacturing a electric battery for a car actually emits more than 70% CO2 then while manufacturing a conventional car running on fossil fuels. up

Please also consider the pollution and energy used in mining oil, transporting it thousands of kms on tankers, refining it, sending it via thousands of trucks daily to hundreds of thousands of petrol stations and then building and operating those premises.

Originally Posted by lina

Wont this void the warranty? I also want to switch but dont want to lose out on the 5 year warranty

I have installed LEDs. There is no outside indication as they simply fit in the same socket. They use lesser Watts so there should be no issues. Please see my photo below.

[ABHI_1512]

Originally Posted by Lobogris

Please also consider the pollution and energy used in mining oil, transporting it thousands of kms on tankers, refining it, sending it via thousands of trucks daily to hundreds of thousands of petrol stations and then building and operating those premises.

I thought that is why everybody around the world is moving towards electric at the first place- towards cleaner energy. If by going electric, one is causing almost the same pollution as using the fossil fuels, then what’s the point ??