Jump to content
kobayashiGT

How Much Range Does an Electric Car Lose Each Year?

Recommended Posts

Moderator

150120.jpg?fit=1020%252C680%26ssl=1&f=1&

All EVs offer a multitude of measures used to slow down the process of battery degradation. However, the process is inevitable.

While electric vehicles have been proven to have considerably lower ownership costs compared to their ICE counterparts, battery longevity remains an equivocal subject. Similar to how consumers ask how long the batteries can last, manufacturers often question the same subject. ''Every single battery is going to degrade every time you charge and discharge it,'' Atlis Motor Vehicles CEO, Mark Hanchett, told InsideEVs. 

Essentially, it's inevitable that your electric car battery, or any rechargeable Li-ion battery, will lose its capacity it once had. However, the rate at which it'll degrade is the unknown variable. Everything ranging from your charging habits to the very chemical makeup of the cell will affect your EV battery's long-term energy storage. 

While many factors are at play, there are four main elements that assist in further degrading EV batteries. 

Fast Charging 

Fast charging itself doesn't necessarily cause accelerated battery degradation, but the increased thermal load can damage the internal components of the battery cell. The damage of these battery internals leads to fewer Li-ions being able to transfer from the cathode to the anode. However, the amount of degradation the batteries face is not as high as some may think.

Earlier last decade, the Idaho National Laboratory tested four 2012 Nissan Leafs, two charged on a 3.3kW home charger and the other two strictly charged at 50kW DC fast stations. After 40,000 miles, the results showed that the one charged on DC only had three percent more degradation. 3% will still shave your range, but the ambient temperature seemed to have a far greater effect on the overall capacity. 

Ambient Temperatures

Colder temperatures can slow down an EV's charge rate and temporarily limit the overall range. Warm temperatures can be beneficial for rapid charging, but prolonged exposure to hot conditions can damage the cells. So, if your car is sitting outside for long periods, it's best to leave it plugged in, so it could use the shore power to condition the battery.

Mileage

Like any other rechargeable lithium-ion battery, the more charge cycles, the more wear on the cell. Tesla reported that the Model S will see around 5% degradation after breaching 25,000 miles. According to the graph, another 5% will be lost after around 125,000 miles. Granted, these numbers were calculated via standard deviation, so there are likely outliers with defective cells that weren't shown in the graph. 

Time

Unlike mileage, time typically takes the worst toll on batteries. In 2016, Mark Larsen reported that his Nissan Leaf would lose around 35% battery capacity at the end of an eight year period. While this percentage is high, it's because it's an earlier Nissan Leaf, which is known to suffer from severe degradation. Options with liquid-cooled batteries should have much lower percentages of degradation.

Editor's note: My six-year-old Chevrolet Volt still shows it uses 14.0kWh after depleting a full battery. 14.0kWh was its usable capacity when new.

Preventative Measures

To keep your battery in the best possible condition for the future, it's necessary to keep these things in mind:

If possible, try to leave your EV plugged in if it's sitting for an extended period of time in the summer months. If you drive a Nissan Leaf or another EV without liquid-cooled batteries, try to keep them in a shady area on the hotter days. 

If your EV has the feature equipped, precondition it 10 minutes before driving on hot days. This way, you can prevent the battery from overheating on even the warmest summer days.

As mentioned above, 50kW DC isn't as detrimental as most think, but if you're sticking around town, AC charging is cheaper and usually more convenient. Plus, the aforementioned study did not include 100 or 150kW chargers, which most new EVs can utilize.

Avoid getting your EV below 10-20% battery remaining. All EVs have a lower usable battery capacity, but avoiding reaching the battery's critical zones is a good practice. 

If you drive a Tesla, Bolt, or any other EV with a manual charge limiter, try to not exceed 90% in day-to-day driving.

Are there any EVs should I avoid?

Almost every used EV has an 8 year / 100,000-mile battery warranty which covers degradation if the battery's capacity drops below 70%. While this will offer peace of mind, it's still important to buy one with enough warranty left.

As a general rule of thumb, any old or high mileage option should be cautiously regarded. The battery technology available today is far more advanced than tech from a decade ago, so it's vital to plan your purchase accordingly. It's better to spend a little more on a newer used EV than paying for an out-of-warranty battery repair. 

↡ Advertisement
  • Praise 2

Share this post


Link to post
Share on other sites
Supersonic

Do EVs lose its range at such a fast rate? It depends on the user, right? Like if the driver doesnt use the EV frequently the cycles of the battery discharging and charging happen less often the batteries deteriorates at a slower rate.

 Even petrol powered cars lose hp over time. Depending on how the user maintain his/her car.

  • Praise 2

Share this post


Link to post
Share on other sites
Moderator
21 minutes ago, Watwheels said:

Do EVs lose its range at such a fast rate? It depends on the user, right? Like if the driver doesnt use the EV frequently the cycles of the battery discharging and charging happen less often the batteries deteriorates at a slower rate.

 Even petrol powered cars lose hp over time. Depending on how the user maintain his/her car.

I think one key factor from this article is heat is the issue for preserving the battery life. Singapore is summer all year round wor. 🤣

Share this post


Link to post
Share on other sites
Supersonic
3 minutes ago, kobayashiGT said:

I think one key factor from this article is heat is the issue for preserving the battery life. Singapore is summer all year round wor. 🤣

Can mod and install more cooling fans?

  • Haha! 1

Share this post


Link to post
Share on other sites
6th Gear
2 hours ago, kobayashiGT said:

150120.jpg?fit=1020%252C680%26ssl=1&f=1&

All EVs offer a multitude of measures used to slow down the process of battery degradation. However, the process is inevitable.

While electric vehicles have been proven to have considerably lower ownership costs compared to their ICE counterparts, battery longevity remains an equivocal subject. Similar to how consumers ask how long the batteries can last, manufacturers often question the same subject. ''Every single battery is going to degrade every time you charge and discharge it,'' Atlis Motor Vehicles CEO, Mark Hanchett, told InsideEVs. 

Essentially, it's inevitable that your electric car battery, or any rechargeable Li-ion battery, will lose its capacity it once had. However, the rate at which it'll degrade is the unknown variable. Everything ranging from your charging habits to the very chemical makeup of the cell will affect your EV battery's long-term energy storage. 

While many factors are at play, there are four main elements that assist in further degrading EV batteries. 

Fast Charging 

Fast charging itself doesn't necessarily cause accelerated battery degradation, but the increased thermal load can damage the internal components of the battery cell. The damage of these battery internals leads to fewer Li-ions being able to transfer from the cathode to the anode. However, the amount of degradation the batteries face is not as high as some may think.

Earlier last decade, the Idaho National Laboratory tested four 2012 Nissan Leafs, two charged on a 3.3kW home charger and the other two strictly charged at 50kW DC fast stations. After 40,000 miles, the results showed that the one charged on DC only had three percent more degradation. 3% will still shave your range, but the ambient temperature seemed to have a far greater effect on the overall capacity. 

Ambient Temperatures

Colder temperatures can slow down an EV's charge rate and temporarily limit the overall range. Warm temperatures can be beneficial for rapid charging, but prolonged exposure to hot conditions can damage the cells. So, if your car is sitting outside for long periods, it's best to leave it plugged in, so it could use the shore power to condition the battery.

Mileage

Like any other rechargeable lithium-ion battery, the more charge cycles, the more wear on the cell. Tesla reported that the Model S will see around 5% degradation after breaching 25,000 miles. According to the graph, another 5% will be lost after around 125,000 miles. Granted, these numbers were calculated via standard deviation, so there are likely outliers with defective cells that weren't shown in the graph. 

Time

Unlike mileage, time typically takes the worst toll on batteries. In 2016, Mark Larsen reported that his Nissan Leaf would lose around 35% battery capacity at the end of an eight year period. While this percentage is high, it's because it's an earlier Nissan Leaf, which is known to suffer from severe degradation. Options with liquid-cooled batteries should have much lower percentages of degradation.

Editor's note: My six-year-old Chevrolet Volt still shows it uses 14.0kWh after depleting a full battery. 14.0kWh was its usable capacity when new.

Preventative Measures

To keep your battery in the best possible condition for the future, it's necessary to keep these things in mind:

If possible, try to leave your EV plugged in if it's sitting for an extended period of time in the summer months. If you drive a Nissan Leaf or another EV without liquid-cooled batteries, try to keep them in a shady area on the hotter days. 

If your EV has the feature equipped, precondition it 10 minutes before driving on hot days. This way, you can prevent the battery from overheating on even the warmest summer days.

As mentioned above, 50kW DC isn't as detrimental as most think, but if you're sticking around town, AC charging is cheaper and usually more convenient. Plus, the aforementioned study did not include 100 or 150kW chargers, which most new EVs can utilize.

Avoid getting your EV below 10-20% battery remaining. All EVs have a lower usable battery capacity, but avoiding reaching the battery's critical zones is a good practice. 

If you drive a Tesla, Bolt, or any other EV with a manual charge limiter, try to not exceed 90% in day-to-day driving.

Are there any EVs should I avoid?

Almost every used EV has an 8 year / 100,000-mile battery warranty which covers degradation if the battery's capacity drops below 70%. While this will offer peace of mind, it's still important to buy one with enough warranty left.

As a general rule of thumb, any old or high mileage option should be cautiously regarded. The battery technology available today is far more advanced than tech from a decade ago, so it's vital to plan your purchase accordingly. It's better to spend a little more on a newer used EV than paying for an out-of-warranty battery repair. 

"....So, if your car is sitting outside for long periods, it's best to leave it plugged in, so it could use the shore power to condition the battery."

I think this one generally not practical in Singapore. 

Share this post


Link to post
Share on other sites
5th Gear
46 minutes ago, DOBIEMKZ said:

"....So, if your car is sitting outside for long periods, it's best to leave it plugged in, so it could use the shore power to condition the battery."

I think this one generally not practical in Singapore. 

Lol hogging the 60,000 EV station? Then back to square one, buy EV only if you stay in landed properties by building your own personal charging station 🤣🤣🤣

  • Haha! 1

Share this post


Link to post
Share on other sites
5th Gear
57 minutes ago, Watwheels said:

Can mod and install more cooling fans?

Like computer CPU ? 😅

  • Haha! 1

Share this post


Link to post
Share on other sites

5th Gear
54 minutes ago, DOBIEMKZ said:

"....So, if your car is sitting outside for long periods, it's best to leave it plugged in, so it could use the shore power to condition the battery."

I think this one generally not practical in Singapore. 

Leave it plug 🔌 in , so means constant charging ? If not leave the plug in for what yeah?

then the question about carbon footprint the selling ideology of EV more environmentally friendly . But if constant charging doesn’t mean power plant working ?

like China talk about full EV 2035? Reduce carbon footprint but their power plant 80% using COAL! So coal burning produce so much soot pollution what carbon footprint is that? Like a zero sum game they are playing just wayang wayang.

  • Praise 1

Share this post


Link to post
Share on other sites
Turbocharged

Jamie advice is 

 

let’s practise safe sex using bicycle without seat 

 

power depends on cyclists 😂😂😂

  • Haha! 1

Share this post


Link to post
Share on other sites
Moderator
1 hour ago, Watwheels said:

Can mod and install more cooling fans?

I have these fans in my com. 😁

Arcticcooling_120mm1.jpg&f=1&nofb=1

Need quite a lot to fill up the car leh. hahaha.

 

Share this post


Link to post
Share on other sites
Moderator
1 hour ago, DOBIEMKZ said:

"....So, if your car is sitting outside for long periods, it's best to leave it plugged in, so it could use the shore power to condition the battery."

I think this one generally not practical in Singapore. 

Maybe i can invent a car solar battery conditioner. 😆

a-c-broke-keep-your-car-cool-with-diy-so

Just place the solar panel on the west sun and plug in to condition the battery.

Not for charging purposes thou. hahahaha.

  • Haha! 1

Share this post


Link to post
Share on other sites
Hypersonic

An electric car loses range

every time you drive it lah!

:D 

  • Haha! 1

Share this post


Link to post
Share on other sites
Supersonic

@kobayashiGT It depends on how EV is designed.

Like Taycan (i know I mentioned it again), it is built with loss of range in mind.

It only use 90% of its battery capacity from Day 1.

Over time, the remaining 10% will replace capacity loss.

Taycan range will be constant over 10 years.

  • Praise 1

Share this post


Link to post
Share on other sites
Moderator
3 minutes ago, inlinesix said:

@kobayashiGT It depends on how EV is designed.

Like Taycan (i know I mentioned it again), it is built with loss of range in mind.

It only use 90% of its battery capacity from Day 1.

Over time, the remaining 10% will replace capacity loss.

Taycan range will be constant over 10 years.

Clever thinking. . .  But I am sure some hacker out there will "overclock" this also. hahah.

Share this post


Link to post
Share on other sites
Supersonic
33 minutes ago, kobayashiGT said:

Clever thinking. . .  But I am sure some hacker out there will "overclock" this also. hahah.

Maybe.

It is a bad idea to do so if always DC Fast Charger

  • Haha! 1

Share this post


Link to post
Share on other sites
Moderator
12 minutes ago, inlinesix said:

Maybe.

It is a bad idea to do so if always DC Fast Charger

Those zhng their scirocco to stage 3 one won't care about all these one. hahah. they just wanna extract all the potential of the car.

Taycan owner should be fine lah. hahaha. Wait till there is a e-scirocco. 🤣

  • Haha! 1

Share this post


Link to post
Share on other sites
Supersonic
5 minutes ago, kobayashiGT said:

Those zhng their scirocco to stage 3 one won't care about all these one. hahah. they just wanna extract all the potential of the car.

Taycan owner should be fine lah. hahaha. Wait till there is a e-scirocco. 🤣

 For cheaper model, there is no buffer for degradation

Sadly

Share this post


Link to post
Share on other sites
3rd Gear

Besides heat, the degradation of battery could also be due to the build up of corrosion of the terminals and linkages of the packs in the battery. Or if the packs in the battery are charged in in parallel, the weakest pack would stop the entire charging earlier. If the system charge and monitor each pack separately, this would not happen. Thus a workshop visit for battery service offering the works above will give back some of the lost capacity.  

↡ Advertisement
  • Praise 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×