BMS and why you should set display to %

So I own a Model 3 P , a year of ownership,  25000 kms done.

Like everyone at the begining i was worrying on max range displayed, and how it was going down.

So I decided to gather data overtime to sort it out a little, and it seems that there could be a huge difference in max SOC displayed due to outside temperature, battery temperature.  current SOC... and so on. 

I think it might help new owners, and convince them to switch to % :-)

About the data : sometimes the max SOC is 500 km, so  311 miles , and can be seen on my car as low as 231 miles too... We can see clearly that around 25°C ( 77°F ) , range is displayed around 310 miles or so, so as advertised by Tesla.

But when temp goes down, Range displayed goes down, and this is not degradation.

Screen shot last week, car in my Garage at 25°C :  max SOC displayed  311 miles : 

But now check this out: today it reads only 231 miles !!

After yesterday night ( car slept in the street ) I started charging after lunch at 10 Amps , temp  32° F :  Max SOC : 231 miles  and you can see the blue line showing battery is freezed.

Same day, after 45 minutes charging at 10 Amps ( at work)  : Max SOC : 261 miles

    Battery is warming up

Next is also BMS calibration.

I have the habit when i reach 10% SOC to let it sit a few hours like that, and then only charge it up to 90%. It helps BMS to calibrate and have a better max range display.

Hope this helped you, current owners of M3.

Not an owenr yet, but ready to place an order for a Tesla and earn some free supercharging miles? 

--> use my refferal to order your Tesla  :  https://www.tesla.com/referral/emmanuel31121 

Cleaner Cars from Cradle to Grave

Found an article on Forbes from 2015 already stating at that time  that as long as people are buying and driving cars, Teslas are excellent choices regarding carbon emissions. 

The article refers to a detail study comparing for example an average midsize midrange BEV with an average midsize gasoline-powered car :   it takes just 4,900 miles of driving to “pay back” !!

A very good summary is provided with this chart  :

 

Lets talk about numbers:  

1- manufacturing of a full-sized Tesla Model S rear-wheel drive car with an 85 KWH battery was equivalent to a full-sized internal combustion car except for the battery, which added 15% or one metric ton of CO2 emissions to the total manufacturing.

2-before anyone says "But electricity is generated from coal!", they took that into account too --> it's included in the 53% overall reduction.

3-what happens to the battery at end of lifecycle?  Answer: Tesla recycles it, recovering 70% of the carbon, as Umicore’s factory plants are able to recycle their batteries into completely reusable materials and substantially reduce the carbon footprint of manufacturing Lithium-ion batteries.

 

 

Convinced ? Ready to place an order for a Tesla and earn some free supercharging miles? 

--> use my refferal to order your Tesla  :  https://www.tesla.com/referral/emmanuel31121 

 

Tesla annual delivery number from 2012-2020

 

Recalls and issue are for every Brand, EVs are no exception

VW ID3 22 bugs 

https://insideevs.com/news/451790/vw-id3-multiple-bugs-mind-the-explanation/

VOLKSWAGEN EGOLF recalls

2016: Vibrations, may cause the rear child door locks to disengage, allowing a child to open a rear door and fall from the vehicle, increasing their risk of injury.

2016: In the event of a crash, the air bags and/or the seat belt pretensioners may not inflate

2015-2016: Oversensitive diagnostics may  resulting in the vehicle's electric drive motor shutting down 

2015: Modifications made while the vehicles were in an internal evaluation period may cause the affected vehicles to not comply with all of the applicable regulatory requirements.

BMW I3

2014-2018: During a frontal impact, small adult drivers could be at a higher risk of neck injury.

2014-2016: risk of a fire.

2014-2015: In the event of a vehicle crash, an air bag may not deploy properly.

CHEVROLET SPARK EV

2014-2016: The front air bags or seat belt pretensioners may fail to deploy in the event of a crash. 

FIAT 500E

2013-2016: Possible loss of motive power can increase the risk of a crash.

2013-2015: An electric propulsion system shut down will cause a stall-like condition.

2013-2014: If the service fuse blows, the vehicle would have a loss of propulsion while driving.

2013: The half shaft joints may loosen and separate causing noise and a loss of driving capability.

FORD FOCUS ELECTRIC

2015-2016: fractured transmission pinion shaft / loss of motive power and loss of the park function.

2012-2014: A powertrain control module software problem may result in a stall-like condition.

2012-2013: A failed door chime may lead a vehicle owner to exit the vehicle without being reminded that the vehicle is still operational, leaving the vehicle susceptible to theft.

HONDA CLARITY ELECTRIC

No recalls.

HONDA FIT EV

2013-2014: In the event of a crash, the inflator in either front airbag could rupture with metal fragments striking the driver or other occupants.

HYUNDAI IONIQ ELECTRIC

2017: Possible defects within the electronic power control unit may allow coolant to contact the unit's circuit board, which may result in a stall.

HYUNDAI KONA ELECTRIC

No recalls.

JAGUAR I-PACE

No recalls

KIA NIRO EV

No recalls.

MERCEDES-BENZ B-CLASS ELECTRIC DRIVE

2014-2015: Due to a possible communication error within the electric drive system, the electric powertrain unit may shut down.

MITSUBISHI MIEV

2012 and 2014-2017: A possible airbag inflator rupture may result in metal fragments striking the vehicle occupants.

2012 and 2014: Possible failure of the brake system vacuum pump could affect braking distance and force required to stop the car.

2012: The side and curtain air bags may not deploy in a crash.

2012: Due to an increased resistance in the impact sensor for the air bag system, the frontal air bag may have a delayed deployment and/or the side and side-curtian airbags may not deploy at all.

NISSAN LEAF

2015-2017: In the event of a crash, the front passenger air bag may not deploy properly.

2016: A possible disconnect of the wiring harness may cause the passenger air bag not to deploy during a crash.

2013-2015: A possible failure of the brake system relay could cause longer distances or additional brake effort to stop the vehicle.

2013-2014: A possible failure of the occupant classification system could deactivate the passenger airbag.

2014: Missing welds may affect the vehicle's integrity in the event of a crash.

2014: Due to a problem with the motor control circuit board, the inverter may fail, causing the vehicle to shut down.

SMART FORTWO ELECTRIC DRIVE

2014: The steering gear mounting bolts may break, affecting vehicle handling.

TESLA MODEL 3

No recalls.

TESLA MODEL S

2012-2016: Possible loss of power steering assist would require a higher steering effort,

2016: parking brake issues

2012-2015: If the seat belt is not correctly attached to the pretensioner, it may not properly restrain 

2013: possible overheated charging adapter, cord, or wall outlet could increase risk of burn injury.

2012-2013: An airbag inflator explosion may result in sharp metal fragments striking 

2013: In the event of a crash, the left hand seat back may not stay mounted

TESLA MODEL X

2017: In the event of a crash, the left hand seat back may not stay mounted, increasing the risk of injury to passengers.

2016: If the parking brake gear breaks during parking brake release, the vehicle will not be able to be moved. If the gear breaks during parking brake application, the parking brake may not adequately hold the vehicle, potentially resulting in the vehicle rolling.

2016: The third row seat back may move forward under load such as in a frontal collision, with an increased risk of injury to an occupant in the event of a crash.

New 82 kWh battery pack in Model 3

As per Electrek our source, Tesla confirmed new 2021 Model 3 vehicles are now equipped with a new 82 kWh battery pack ( more energy-dense battery cells produced by Panasonic).

--> Panasonic said it increases the energy density of cells by 5% ,output by 10%.

These new cells are still 2170 battery cells and not the new 4680 cells developed by Tesla.

 and unveiled at Battery Day in September. Although, they could benefit from some chemistry improvements developed by Tesla for its new cell format.

New Model 3 Long Range Dual Motors AWD is getting a new record range of 353 miles on a single charge.

Top-Selling Electric Car Models in Europe in 2020 (September)

The top-selling battery-electric car in Europe in September 2020 was again the Tesla Model 3.

 

source https://www.best-selling-cars.com/

Future Tesla buyiers guide

 Looking for reasons to buy an EV ?

1. You get some free supercharging if you place your order  using a referral code ( here is mine if you want  https://www.tesla.com/referral/emmanuel31121   )
2. You save the planet as EVs emit far less CO2 van ICE
3. You save money on gas ( using free supercharge as per 1., and because electricity is cheap)
4. You save on maintenance, as EVs are virtually maintenance free.
5. EVs last longer than ICE, no engine, rock solid battery.

Now lets get into details: 

1. Using a refferal code like mine https://www.tesla.com/referral/emmanuel31121, will provide you with 1500 km of free supercharger use.                                                                                                    
2. EVs emit fat less CO2 van ICE : numbers.

•  CO2 emmited in the entire lifecycle of a vehicle ( produce & use it during 150000Km)    ICE :  46 tons   /   EV :   26 tons   Source 
•  NOx emitted when driving these cars for 150000km                                                               ICE : 75 tons    /   EV :  0 tons       Source  
•  Energy consumed to drive 150000Km (production ,extraction refining, transport.) :     Diesel : 6 tons of CO2   Source  /  Electricity   0,42 tons of CO2   Source 

     3. Savings on gas :here is cost of the energy used to drive 35000km per year, as well as                               the associated service costs ( i am not displaying items like tires, that are  exactly the same):

        Bottom line :  in six years, I save  25000 CHF owning an EV vs an ICE car (range rover evoque).                                                                                                                               

    

     4. Maintenance : as my Tesla rep said: “ no  maintenance at all, just come back in six years for AC”..

     5. EV last longer that ICE : for those worrying about battery life, as per this informative chart I                   gathered from youtuber Like Tesla,  even with the worst charging habits, ( 100-20% ) it takes                  300000 miles to see a 10 % capacity loss. Quite good actually.

Convinced ? Ready to place an order for a Tesla ? Good choice. Feel free to use my refferal to order your Tesla  :  https://www.tesla.com/referral/emmanuel31121