Sure, if you want to shorten the life of your battery.
There's a reason Tesla (and most other manufacturers) recommend you only charge your battery to 80%.
Not really no. And a lot has to do with the type of battery, what the Battery Management System (BMS) does to protect the battery and how effective it is, etc. For example, I can give you a recent quote where Tesla says it is ok to charge the battery to 100% daily; granted that is for an LFP (Lithium Iron) battery and not their longer range battery packs; plus the LFP battery packs also have less degradation. The disadvantage is they charge slower (at fast chargers) and are less energy dense.
As for my car, Kia actually recommends charging to 100% once a month. Charging the car to 100% does not hurt the car though it is advisable not to let the car stay at 100% for long. The reason for the recommendation (and one many EV manufacturers have) is to help the BMS -- there is not a good way to accurately gauge the amount of energy in the battery -- particularly since the charge is in so many small battery cells that make up the battery; it also ensures the charge is equal among all the cells, which is better for the battery life.
That claim is based on information ascertained from the article I posted which I have no reason to doubt.
Why do you think Hyundai and Kia advertise their 10%-80% charge times? It's because they charge very quickly. But the last 20% of that charge takes more than TWICE as long as the first 70%.
Yes, batteries are slower when charging the "top" of the battery. Of course, if you checked out A Better Route Planner and the route we've talked about, you'll notice most of the time it doesn't even have you charge to 80%. Instead, it tries to have you get as quick a charge as possible and get back on the road to the next charger, coming in at a lower percentage so you can again charge quickly. It seems counter-intuitive, but shorter (maybe 150 miles) with extra charging stops is actually faster.
That's not really applicable when on a road trip.
No, but it is the other 330+ days (or however many you are at home) per year.
Here is yet another article that explains why you should only charge your battery to 80%
We've teamed up with Shell Recharge to solve the mystery of why you should try to only charge an electric car to 80% | Read more on Electrifying.com | Read more on Electrifying.com
www.electrifying.com
Are all of these articles wrong?
They are oversimplified. This is particularly true since a lot depends on the car, the battery, and how the BMS is designed. As I mentioned, Tesla's LFP batteries tend to do better when charged to 100% on a frequent (even daily) basis; and it doesn't hurt them to stay at 100%.
I also mentioned my own battery at some point, and what Kia has done to protect it. Again, Kia lists my battery as a 77.4kWh battery. In fact, the actual capacity of the battery is 80.2kWh -- just that Kia prevents the battery from charging fully, it keeps that last roughly 3% as a buffer -- you can't ever actually fully charge the battery to 100% (only to about 96%).
Additionally, of that 77.4kWh, Kia, through the BMS, only "counts" 74kWh of the battery as usable. I think I stated this before -- the mileage and percentage is based on 74kWh and, after it is used and you are at 0%, you still have another 3% that can be used, much like that extra half-gallon of gas in a tank that most cars have, if you go below empty.
There is a lot of information on the Internet about lithium batteries and the best practices. At least one suggested that your battery could last (to include much slower degradation) ten times longer by keeping the battery above 50% and lower than 75%. Granted, most people wouldn't be willing to do that and your car isn't going to last that long (at least a few decades). Of course, others recommend that you keep it between 20% and 80% on a daily basis. Much of the problem is that batteries aren't the same (different chemistries, different types of "package", etc), nor how the manufacturer handles the battery management.
I'm not sure what you're responding to here. That was a direct quote from the article I posted.
I understand it quite clearly. If you charge your battery to 80%, you have 20% less range. It's not exactly rocket science.
True, but on a daily basis you don't really miss that range. And, as he stated, if you need 100% on a particular day than you let your car charge to 100%. At the same time, with most EVs you can tell your car when you want charging to finish -- and it will charge the car so that you only hit 100% at the same time you plan on leaving. This keeps the battery from having that high charge level for very long but still gives you the range you need for that day (or for the trip).
It's also worth pointing out, the other reason why manufactures don't like 100% (as well as owners) is that regenerative braking doesn't work -- there is nowhere to store the energy created by regenerative braking when the battery is full -- so the car has to rely on the physical brake pads.
Actually, they are. In fact, most EVs allow you to set a charge limit so that your car NEVER charges above the limit you set. Bonus points if you can guess the percentage that most manufacturers you recommend as the percentage limit..
Tesla actually tells you directly in their app what the charging percentage recommendation is.
View attachment 345516
Notice that, it says "recommended for daily driving." It doesn't say never charge above 80%, just that 80% is the recommended daily limit. I should also mention that Tesla recommends always having your car plugged in at home; having it on the charger doesn't harm the battery and tends to be good for it.
And, again, going back to Kia, it is difficult to find absolute statements on how much to charge the battery on a daily basis; as well as a debate among owners about how much to charge daily. These discussions can be rather interesting, even if some of the finer points are over my head.
Wow! There's misinformation on social media?! Do tell!
Cost to charge an electric car at a public charging station
Overall, charging your car at a public EV charging station is more expensive than charging at home. Public charging systems that charge based on kWh average anywhere between $0.30 and $0.60 per kWh compared to $0.16 per kWh at home. The exact amount depends on local electricity cost and regulations, as well as the type of charger. Level 2 chargers generally cost between $0.20 and $0.25 per kWh, while Level 3 chargers, which are more common in public, range from $0.40 to $0.60 per kWh.
UPDATE: November 27, 2024 We are pleased to share that VoltiE Group Inc. has been engaged to provide a path forward through brand stewardship and end-user support for the Enel X Way North America EV charging network. This transition follows the closure of Enel X Way USA on October 11, 2024...
www.enelxway.com
As your link suggests, the price of public charging can vary quite a bit, even in the same city. There are chargers in my city that are completely free to use, to include 50kW fast chargers. I think the cheapest Level 2 that have a charge, that I've seen are $0.15. Of course, I recall seeing one at a doctor's office where it charges by time, rather than kWh, and if you do the math it is very expensive, more than the fast chargers in the area.
As for the subscriptions, like EVgo and Electrify America, the trick is that typically you can subscribe if you know you are going to be using them on a road trip, and then unsubscribe the following month when you are back home -- I might have missed something but I've not see a minimum amount of time you have to join. And EVgo seems to be more mercenary than Electrify America. Electrify America charges about $6 for their "membership" and charging your car about 60% (say 20% to 80%) gives enough of a discount that your membership is paid for by that one charge. EVgo, with their higher priced plans ($13 for 30% off of charging cost), still gives a discount but it takes a couple of charges in order to "pay off" the membership.