Here's Why You Should Run Your Battery Low On An Electric Car Road Trip
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- เผยแพร่เมื่อ 24 เม.ย. 2023
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Future video idea: go on a road trip with 2 exact same EVs, on one don't go lower than 25%, on the other around 10%. Let's see how much of time difference it is for the entire road trip.
I’d me totally comfortable doing this in my local charging area. However on a road trip not knowing the state of the chargers I would be a little more hesitant
This should be mandatory viewing for VW, MBenz, and Hyundai drivers, who, with their EA ‘free’ plans, largely seem to feel they’re leaving money on the table by not squatting at EA stations until their SOC hits 100%. And, when confronted about this, they turn indignant and threaten to call 9-1-1, as an ID.4 Karen did recently.
I come from an aviation background. We are trained to plan for a certain fuel reserve to have at arrival to mitigate risk (mostly for wx / unscheduled airport closures). I do the same thing with my Tesla and plan for ~15% at arrival. Some people seem to like the challenge / adrenalin high of arriving with the lowest SOC; I find the practice a bit odd - it's not worth the drama.
I have always liked the example for charging rates of the battery pack being like a trash bag, because like a trash bag, when it is empty, it is easy to start filling it and as the bag gets full, it becomes harder and harder to get more stuff into the bag, Most people can relate to how that works.
As a Taycan owner I always target 10% arrivals and have done a few 1% arrivals. The GOM is very accurate in my experience with over 50k miles. I charge to generally <70%. Average stop on a 5k mile road trip was 16min.
My first road trip I stayed around 20%. My next two trips I try to get below 10% and saved so much time. I have a Model 3 and if the nav wants me to charge for more than 25 minutes I look to see if it is skipping a charger. If it is then I manually add the charger and I charge just enough for it to say I will arrive at 10% and I go. Saves a lot of time.
I unplug when my car shows that I will be at the next charger with 10%. But since I drive 10-15 mph over the speed limit I usually get to the charger with 2-5%. If for some reason I use too much energy and my estimated arrival percentage drop down to 1% , I slow down. Works for me 🤷🏻
I've tried to explain this to people who say that you can't roadtrip an EV. This video explains it really well. Thank you for making this video!
As a Tesla owner I agree with going low on the road for optimum charging but I would not have the same confidence in a CCS vehicle because of their inherent issues with reliability of the chargers (re: 10 chargers available/5 working but at 50kW). You could waste much more time waiting for an available charger if you don't have the battery percentage to make it to the the next available charger.
Good in theory. The reality is though that chargers are broken left and right or have long queues on the remaining working stalls. IF you arrive low on energy you can't divert or try the next charger as it'll be out of range.
I use my Mini Cooper SE electric for around-town driving only and often go until I'm around 10-15% before charging in my garage. Overnight, it easily fills to 100% and I don't restrict this. In fact, I believe Mini encourages a 100% charge all the time, partly due to the lower range of the SE (around 114 miles). (By the way, why doesn't anybody every mention the Mini anymore? They're still around and damn good little EVs.)
Very interesting discussion, and timely. Just took my Ioniq 5 AWD Limited down to 8% and it says I have 24 miles of range. What is strange I have been averaging around 4 miles per kwh lately so that would equate to about 24.78 miles, so close enough. What I found odd is that the SOC on the Car Scanner app says 8.5% but the SOC BMS says 12.5% which is in line with the high buffer level you talk about, and that would under recent driving conditions yield 93675kwh or about 38.7 miles of range. What is odd is the car scanner app says the remaining energy is only 5.67 kwh, I wonder why it shows that low a level.
To be more clear and educate people, you should explain that the charging curve is programmed a certain way because of the physics and chemistry of lithium ion cells. The BMS dictates charge speed, and the BMS operates based on its programming.
I agree wtih the idea of maximizing your range by letting your battery get lower. Unfortunately, the state of the CCS network puts way too much risk of getting stranded, especially where the network is still very thin. Just today, I found two dead 350kw chargers at two separate stations a few miles apart. Not a good warm feeling with an impending EV road trip.
Having driven my Ioniq 5 back and forth across the US twice, I really don’t see the value of slowing down or in my car running to the bottom of the pack. I mostly drive 80mph. My stops happen every 2 and a half to three hours. Most are less than 18 minutes and many are 12 minutes because
I take mine down between 5 and 10 percent but I know what my options are ahead of time. Do your homework when traveling and there wont be a problem. Tesla's don't have this problem for most of the country in the US but other brands need to just plan ahead so they know their options as they go. 65-75 mph is gonna net you the best range imo.
This was a great video and good information on the battery and charging. when I get my tesla I will probably be like you and riding it down to 7-10%, bc like on cellphones it charges fast when at smaller percentages and like you said it charges (Electric vehicles) faster from 10-80%, than from 80-100%.
LFP battery BEVs don't go into 'turtle mode' when low on juice.
I’ve only been driving EVs for seven months and I still don’t understand the range anxiety thing. I drive a lot and I routinely took my ICE cars down to ten miles. Now I’m routinely taking my EV down to 4%. In fact 4% is a lot more than ten miles LOL.