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      02-17-2017, 10:21 PM   #1
Barago
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New 2016 i8 losing charge very quickly- 20% gone after 2 miles

I fully charged the car this evening and then drove less than two miles. I went from 100% to approx 90%. I then drove another mile and it went down another 10%.

The other day I also noticed the charge go down quickly and thought I had the car in full E drive....it was def not.

Could I have a faulty battery?

Last edited by Barago; 02-19-2017 at 05:19 AM..
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      02-18-2017, 12:46 AM   #2
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I think you drive in Comfort Mode and drive the car a bit harder and your speed is less than what requires to fire up the gasoline engine ,from my experience when the car battery is fully charged ,25 kilometers, I can consume it up to 18 kilometers if I only let the car propel with e-power
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      02-18-2017, 12:54 AM   #3
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Various ways to check

What is your current draw? Check the consumption page and there also is an instaneous draw figure if you configure the trip computer on the indicator stalk

What mode are you in? Comfort, ecopro?

It's highly possible if you are accelerating up an incline? If fact if I accelerate too hard it will force me out of edrive

My own experience that for max e range runs I don't use edrive for inclines, what I do is petrol with hold charge ( configure one of your 1-8 buttons for this), then full edrive when summited. On my 25 mile commute I can get an average of 130 uk mpg. To be honest most of the time I can be bothered and it drops to 80-90.

Word of caution I have burnt out the electric gearbox, warranty issue unknown fault but I only ever put edrive on when I'm stationary or fully off the accelerator and slowing down for several seconds. I do this as a precaution
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      02-18-2017, 12:58 AM   #4
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Quote:
Originally Posted by Nivarox View Post
I think you drive in Comfort Mode and drive the car a bit harder and your speed is less than what requires to fire up the gasoline engine ,from my experience when the car battery is fully charged ,25 kilometers, I can consume it up to 18 kilometers if I only let the car propel with e-power
Another point is preconditioning makes a big difference on a start! Was it cold?

for max range air con can give you an extra mile or so.
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      02-18-2017, 02:15 AM   #5
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I let the car warm up a bit and it was maybe 58 degrees Fahrenheit and raining.

I was also in Eco pro (not comfort) the whole time with no incline and was driving very normal speeds. I will attach consumption statistics from the last trip if it helps.
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      02-18-2017, 02:17 AM   #6
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Car was on "auto E drive" so button not pushed.

Both times I've driven the car the charge runs down at an incredible speed. A bmw genius at the dealer thinks I may need to take it in for service to be checked out.
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Last edited by Barago; 02-18-2017 at 02:34 AM..
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      02-18-2017, 03:43 AM   #7
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Quote:
Originally Posted by Cbarago View Post
Car was on "auto E drive" so button not pushed.

Both times I've driven the car the charge runs down at an incredible speed. A bmw genius at the dealer thinks I may need to take it in for service to be checked out.
Yeah definitely something's not right

Your doing the right thing getting her inspected
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      02-18-2017, 09:14 AM   #8
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Quote:
Originally Posted by Cbarago View Post
I let the car warm up a bit and it was maybe 58 degrees Fahrenheit and raining.

I was also in Eco pro (not comfort) the whole time with no incline and was driving very normal speeds. I will attach consumption statistics from the last trip if it helps.
2.9 mi/kWh is not unusually bad. That gives you about 15 miles out of the usable 5.2 kWh of the battery. That's equal to what many people here have been reporting under normal driving. You can get much more (I've been up to 23 miles), but conditions and driving style have to be just right.
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      02-18-2017, 09:22 AM   #9
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Predicted mileage is based on an algorithm that senses recent usage. After a few real world miles the prediction for the remaining electricity comes closer to the reality of your current driving.

As an example, I live on the foothills and a street 100 yards from my house goes up to the top of the mountain, 5 miles away (and up a steep grade). If I use the gas engine to climb the mountain and then coast down in electric mode I can get the indicated range for electric power up into the high 20s. When I start driving in the foothills the expected range snaps back to normal after a few miles.

So, rather than look at how much range you're losing, find out how much range you actually have. If you have at least 15 miles of range in electric only, without a lot of steep hills, then your battery is normal.
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      02-18-2017, 12:51 PM   #10
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Quote:
Originally Posted by Aye-eight View Post
2.9 mi/kWh is not unusually bad. That gives you about 15 miles out of the usable 5.2 kWh of the battery. That's equal to what many people here have been reporting under normal driving. You can get much more (I've been up to 23 miles), but conditions and driving style have to be just right.
Agreed. 2.9 miles/kWh is average for what I see. As Aye-eight mentions I've also managed to squeeze 22 miles out of the battery - but that's in the summer.
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      02-18-2017, 04:55 PM   #11
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Thanks for the responses and info. I literally drove 2 miles and wasnt using full E-gear, but rather was just in Eco pro and auto E-gear.

The night before I drained the whole battery in about 8 miles.

Today im going to try comfort mode a bit and listen to all of your tips.

Love this car btw. I haven't driven the Maserati once since getting it.
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      02-18-2017, 07:16 PM   #12
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Quote:
Originally Posted by Cbarago View Post
Thanks for the responses and info. I literally drove 2 miles and wasnt using full E-gear, but rather was just in Eco pro and auto E-gear.

The night before I drained the whole battery in about 8 miles.

Today im going to try comfort mode a bit and listen to all of your tips.

Love this car btw. I haven't driven the Maserati once since getting it.
Is "LA" Los Angeles or Looseiana?
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      02-18-2017, 08:41 PM   #13
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Mine fully charged has always been at max 17 miles or so. Now its more like 14 to 15 after 7 months of ownership. Yours sound pretty normal to me.
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      02-18-2017, 09:58 PM   #14
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West Los Angeles
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Is "LA" Los Angeles or Looseiana?
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      02-18-2017, 10:05 PM   #15
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OK so today I drove around in comfort and a little Eco (auto e-gear) and almost drained the rest of the battery within 7 miles going 45 mph on flat roads.

I then switched to Sport and the car started to recharge at a very quick rate.

If im in Eco and im driving slow I experience almost no charge (and severe battery drain) unless I'm coasting/going down hills. I'm assuming this is the norm?

Are most of you primarily in sport for normal driving...unless coasting down hills etc? It seems that in Eco mode im still drainiing the same battery life as I would in full E-gear.

Sorry for all the questions- I had the car shipped in so had no genius to explain the car's different personalities.

Last edited by Barago; 02-18-2017 at 10:22 PM..
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      02-18-2017, 10:36 PM   #16
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Quote:
Originally Posted by Cbarago View Post
OK so today I drove around in comfort and a little Eco (auto e-gear) and almost drained the rest of the battery within 7 miles going 45 mph on flat roads.

I then switched to Sport and the car started to recharge at a very quick rate.

If im in Eco and im driving slow I experience almost no charge (and severe battery drain) unless I'm coasting/going down hills. I'm assuming this is the norm?

Are most of you primarily in sport for normal driving...unless coasting down hills etc? It seems that in Eco mode im still drainiing the same battery life as I would in full E-gear.

Sorry for all the questions- I had the car shipped in so had no genius to explain the car's different personalities.
For my last tank of fuel I only used Comfort or eDrive. Managed 430 miles with gentle driving.

With eDrive I actually got about 12 miles in the dark and cold (2 deg C) before the battery was drained. That was starting with a full charge and range reporting 14-17 depending on the day, outside temp and time.

Just using Comfort I did a few 60 mile drives starting with a full charge. Electric range reported between 14-17 depending on outside temp. I still had a couple of miles of betters range left when I reached my destination.
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      02-18-2017, 10:41 PM   #17
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Quote:
Originally Posted by SteveB_UK View Post
For my last tank of fuel I only used Comfort or eDrive. Managed 430 miles with gentle driving.

With eDrive I actually got about 12 miles in the dark and cold (2 deg C) before the battery was drained. That was starting with a full charge and range reporting 14-17 depending on the day, outside temp and time.

Just using Comfort I did a few 60 mile drives starting with a full charge. Electric range reported between 14-17 depending on outside temp. I still had a couple of miles of betters range left when I reached my destination.
To confirm: during that 430 miles, how many times did you charge the car? I'm guessing quite a few times?
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      02-19-2017, 12:33 AM   #18
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Quote:
Originally Posted by Cbarago View Post
Quote:
Originally Posted by SteveB_UK View Post
For my last tank of fuel I only used Comfort or eDrive. Managed 430 miles with gentle driving.

With eDrive I actually got about 12 miles in the dark and cold (2 deg C) before the battery was drained. That was starting with a full charge and range reporting 14-17 depending on the day, outside temp and time.

Just using Comfort I did a few 60 mile drives starting with a full charge. Electric range reported between 14-17 depending on outside temp. I still had a couple of miles of betters range left when I reached my destination.
To confirm: during that 430 miles, how many times did you charge the car? I'm guessing quite a few times?
Did that mileage over five days and used the car on four of those. Four short journeys and the rest long.

Had it booked up to charge every night and always put pre-conditioning in in the morning which takes a mile or two of the range depending on how long I pre-condition for and how cold it is outside.
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      02-19-2017, 04:39 AM   #19
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Quote:
Originally Posted by SteveB_UK View Post
Did that mileage over five days and used the car on four of those. Four short journeys and the rest long.

Had it booked up to charge every night and always put pre-conditioning in in the morning which takes a mile or two of the range depending on how long I pre-condition for and how cold it is outside.
Thanks for the info
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      02-19-2017, 04:41 AM   #20
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If im in Eco and im driving somewhat slow I experience almost no charge (and severe battery drain) unless I'm coasting/going down hills. I'm assuming this is the norm?

Are many of you primarily in sport for normal driving...unless coasting/going down hills etc? It seems that in Eco mode im still draining almost the same battery life as I would in full E-gear.

Last edited by Barago; 02-19-2017 at 05:22 AM..
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      02-19-2017, 05:48 AM   #21
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Have you tried to see how many miles you achieve in just e-drive with eco pro? Perhaps that might be a good starting point. Try it without any heating or a/c first and see what you get...
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      02-19-2017, 06:35 AM   #22
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Quote:
Originally Posted by Cbarago View Post
If im in Eco and im driving somewhat slow I experience almost no charge (and severe battery drain) unless I'm coasting/going down hills. I'm assuming this is the norm?

Are many of you primarily in sport for normal driving...unless coasting/going down hills etc? It seems that in Eco mode im still draining almost the same battery life as I would in full E-gear.
If I drive in eco I get almost no battery drain once up to speed. Battery seems more focused on town driving.

Perhaps the lack of drain for eco is because of the reduced performance and not getting much battery assist unless using a lot of throttle.

How are driving? Still stabbing the throttle down quite a long way at every opportunity to enjoy the electric surge and pickup? If you are then you will drain the battery quick in comfort and eco. In sport it will regen the battery but when doing so you'll get much worse economy.
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