Jomarkh
Prominent Member
What is your mi/kWh figure?
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Information & Inspiration For MG Electric Vehicle Enthusiasts
Reduced range in winter (merged)
What is your mi/kWh figure?
Archev
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Hi no problem econ or eco are shortened versions of economy. The car sets up slightly different in order to eke out the available battery power. It’s therefore the setting I always go for along with maximum regen setting 3 ‘cos I’m a cheapskate hailing from the north side of Auld Reekie and old habits die hard.
Bear in mind that the heater doesn’t provide as much warmth in eco as in normal or sport and the regen braking isn’t there much above 90% battery as there’s less “room” to store any power the car makes.
Simplest way to ascertain SOH (State of Health) of the battery is to ask the dealer at service time. Some clever clogs on here have plug in readers to install in the diagnostics socket under the dashboard by your right knee but I’ve never bothered.
If you charge the car with a home charger or a so called Granny charger using household power, then if you just leave the car overnight you’ll have a fully balancer, fully charger machine ready to hit the trail. Don’t let it sit unused too long in its full state or, over time (months) this can slightly degrade the battery cells. Balance charges are recommended periodically- some say monthly - I’ve left mine on charge overnight and hence balanced and filled the battery three times in the last couple of weeks as I’ve wanted to leave with as much range as I can. I’ve usually set of within 2 or 3 hours of unplugging and all has been fine.
Coulomb
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I agree, and done. Thanks for finding them, it makes merging the threads a lot easier.
If we could all learn to use the search button, and realise that most likely, when we find an issue, someone else on this mighty forum has already discussed it, and quite possibly solved it.
Gooose
Standard Member
What’s the verdict on charging to 100% in winter rather than 80% for battery health, my range is crap in the winter around 180 miles but over 300 in the summer from a full charge so I would rather get the most range just in case I have a long trip at short notice
Gadget Geek
Prominent Member
I used to think like that, however, just like a fossil car, I can always fill the tank at a local rapid charger.
Lovemyev
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LR model with NMC battery chemistry of course.
It's one them really, do you actually require the extra range provided by the battery, when charging above the 80% SOC level ?.
If the answer is YES then 100% SOC it has to be then, or your topping up on route.
Standard range models with the LFP battery and your charging to 100% SOC each and every time you plug in.
But this recommended for LFP chemistry.
I don't expect you would find a standard range model owner complaining too much about only getting 180 miles in a similar situation.
Terry2
Standard Member
A dealer should be able to establish this. I’m not sure how you can check it yourself. From things that I have read, battery degradation at your stage of ownership is either because the BMS needs updating or it hasn’t been balanced properly (ie charged to 100% and left to go off on its own and not unplugged at 100%). In my experience, balancing can take 1-1.5 hours after the full charge. Rebalancing is either via a home normal plug socket (in the garage) or a 7kW one but not a rapid charger. i was always cautioned about rapid charging without regular balancing. In my Gen1 model I balanced regularly so that range wasn’t reduced because of inbalance.
Just fyi. I have also reached out to YouTube MG ZS EV video creators, such as Modern Heroes and Electric Vehicle Life who also were very helpful as well as the folk on here.
You havd 3 modes of driving - econ, normal and sport. You notice the deceleration with econ but I used it all the time.
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apzs
Established Member
Tbf cabin temperature changes don't impact my range on our ZS. The only time it makes a difference is if you switch it off completely.
Our car is indicating about 270miles right now but getting closer to 250 - 260 city driving. Just about 200 - 210 motorway driving.
Our car is indicating about 270miles right now but getting closer to 250 - 260 city driving. Just about 200 - 210 motorway driving.
DBedford
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270 miles range this time of year !!!
apzs
Established Member
Yeah but as I said that's just indicated on the car and it's never to be trusted. Based off my driving in town, I'm getting 3.8 miles/kw so roughly 250 to 260 miles on a full charge.
About 3.3 miles/kWh on motorway at 70mph which is just about 200 to 220 miles on a full charge.
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Gadget Geek
Prominent Member
Nothing wrong with those figures at this time of year.
apzs
Established Member
True, I'm fine with those figures. There are times in the day when it dips but overall been this way.
MG steve
Established Member
It does on mine. I like it warm and my range is really low this week I think it’ll be 190 miles!
I’m driving across London and I was 2.6 miles per kW over 6 miles. No where near your figures.
apzs
Established Member
That's interesting, mine goes to 2.9 for the first mile or two and then creeps up to low 3s if I have heating on. I set mine to about 26 degrees. But without heating I get high 3s to low 4s right now.
Waterstoney
Established Member
Do you normally drive short distance or long distance?
Short distance driving is with low efficiency, just like ICE car. I would not worry about range for short distance travel.
My ZS heater can drain 20A current when car is stationary. That would be about 7kW. This can easily half the range in winter. However electric draining current for heating can reduce when car is warming up after a while.
Range estimation will be reduced if I keep driving short distance with cold battery.
My estimated ECO range was 279 miles for ZS LR last week. I drove 136 miles with 50% of charge in mostly in 1°C temperature. My heating was on for the first hour traveling 50 miles. 136 miles distance includes 6 one-hour trips. So battery would be warm for most part of trip.
On negative side, I lost about 90 miles in range comparing with summer ECO range. On positive side, achievable winter range of 279 miles is higher than official WLTP range of 273 miles.
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