Thanks for this, I accidentally stored my I Pace at 74% for 3 weeks. It's NMC, I tried to login and activate the heating to reduce SOC, but the car had gone to sleep 😮 I estimate in reality 74% is 68% ISH which according to the data given is fine. Was getting stressed, thanks for putting my mind at ease!
I think its important to stress not just that degradation depends on the potential between the cell plates but also the time spent at that potential. Itsn't going to cause a huge problem to charge to 100% just before you set off on a long journey and start discharging the battery - the thing to avoid is to leave the battery at a high state of charge for most of its life while parked up.
I saw Dr Euan Turk talk at the Fully Charged Show about batteries in Yorkshire a couple of months back. He's a very clever, informative and articulate person indeed. The upcoming progress in battery technology is looking fantastic! Great video Nicolas; keep them coming. 👍
@@NicolasRaimo I'm amazed his videos don't get more views - so great that you are featuring him on your channel - good to have some science mixed in with all the EV fun :)
Great video, thanks! However, could you provide a reference for the part where you say that cycling between 80% and 20% provides a greater energy throughput than smaller depths of discharge around an mSOC of 50%? Every paper I have read regarding NMC has shown that cycling 55% to 45% shows less degradation than 80% to 20%.
Been charging mine to 100% for the last 4 years without any problems at all, so long as you use it within a couple of days and run the battery as low as you can before you recharge it then it will be fine.
0:08 - I wish we could do that with our Zoe ZE50. It's a nuisance having to open the car door and then press a button on the dashboard. Especially if it's raining.
And what was the answer you heard and which battery chemistry or use case? 😆 I got Euan to record this as everyone avoids charging to 100 stating it’s bad to do so but having Euan him self stated he does it kinda kills most arguments
I have solar PV (lucky me ..still on high FIT tariff as early adopter) and I needed info re trickle charging to 100% ..a tempting proposition in summer . I now will not be doing this . Thanks again .
Hey buddy, love your videos about EVs and stuff, really appreciate the work and effort you’re putting in there! One question though: can u perhaps do a video about regen braking and how it affects or not affects battery longevity and degradation? I’m always wondering how this makes sense since a li-ion battery has only a limited number of charge cycles and if every regen braking contributed as a (very short) charging cycle, then the battery would be dad after a year or two. That’s obviously not the case, but why? Thx a lot man and all the best
Haha - yes indeed. However it doesn't seem to cause problems so long as you use the charge that is stored fairly soon after charging. 24kwh (2013 onwards) is maybe more resilient than the battery in the 2011/12 24kwh too? My car has 80k miles on the clock, 11/12 bars health and 80-mile range, but I only occasionally need to charge up to 100%. I need to make a point of doing so every few weeks just to re-balance the battery pack..
Interesting what you say about charging phones to 100% not a good idea. I suppose a lot of us have that NiCad memory effect still lurking in our minds and think we have to charge to 100%.
@@NicolasRaimo I know but it is difficult to break old ingrained habits and practices. I remember in my radio club when we had a talk on the amazing lengths they had to go to maintain the NiCad radio batteries at Stansted Airport. As a matter of routine they were put on multiple discharge/charge cycles to keep them up to scratch.
Excellent video and really good information. So, with an LFP home battery connected to solar panels, what should I charge the battery too at night time. I usually charge the battery from off peak based on my predicted amount of solar generation and the predicted home consumption. This often means charging the battery up to 60 to 80% and then it running down to 20 to 30%. But it's hard to predict and charging it to 100% is usually too high as the solar miss max out the battery during the morning and it starts to export which is a little bit of a waste. Any suggestions?
I check the weather forecast as well as what home assistant tells me and make a best guess on how much, if any to add during cheap off peak tariff. But regarding worrying about over charging, if you are like me and buy at 7.5p and sell for 4.1p then, if you over charge by let’s say 2 kwh then in reality you have wasted 6.8 pence. No biggie eh? But if you undercharge by 2kwh it will cost 60p at peak rate. Oh and in the Winter I will be charging to 100% every night as I too have LFP batteries.
I brought an Ev from Cinch and they had it for several months before it sold. By the SOC of the battery after only two years I suspect they charged it to 100% and then stored the car until it sold. It was delivered with a very low M/Kwh average but still a high battery state of charge. I have no proof but does Cinch understand how Evs work or indeed any ordinary garage?
I get the impression that there are only a minority of fossil dealerships that are fully trained in EV maintenance and storage.. hopefully that is already changing in advance of the 2030 census.
"NMC" sounds like a lot of trouble. I shall be very wary of my electric tooth brush from now on. And there have been a lot of lithium battery fires recently - not least one that caused the destruction of an entire cargo ship. I understand that batteries which use sodium chemistry are much less combustible than the lithium kind (and lithium batteries even come with their own oxygen supply built in). But I do not know why Sodium is safer. After all, a battery is a concentration of a lot of energy in a small space. That sounds like a good recipe for a bomb, to me - no matter what the chemistry. So can you explain why sodium batteries are "safer" than lithium batteries? I would be happy to sacrifice some vehicle "range", if I were confident that my battery was not going to go "bang".
Hi Paul LFP is VERY VERY stable and safe and newer blade cells don't even get hot or vent hot gases video on this soon click the bell not to miss the next video with Euan
I've just bought an Kia Soul EV. My plan is to charge to 75% most of the time. I'm planning to use the Octopus Intelligent tariff with a Ome Pro charger plugged in a lot of the time but controlled by Octopus. This may lead to short cyclinging between 50% and 75%, is this a problem?
Is there any way to check what battery chemistry your car (specifically Tesla Model 3 standard range, 72 plate) is using so you can manage SoC accordingly?
@@NicolasRaimo thanks, just checked and I'm on a LiFePO4. It also says when I reduce from 100% "we recommend keeping your charge limit at 100% and charging fully once per week"
So in reality, the battery is charged when 20% and up to 80% a useable 60% capacity. That would relate to 60% of quoted mileage. All to conserve the life of a very expensive battery. It just gets worse.
If you listen to video that’s not what Euan said he even said he chargers to 100% when he needs the range and LFP doesn’t care… it’s more about being kept at high % for long periods or shallow cycled
*Quite agree with all your comments, a few years ago did consider buying an EV as were stated to be the best thing since **_sliced bread_** however now so glad I opted instead to get a Mercedes (W247) B200 CDi AMG 8 Speed [Diesel] with 81 miles on the clock (ex Demo) with all the latest tricks etc - and got a massive discount of nearly £10k from list price. This has absolutely amazed me, so so quiet, incredible range and over 35 mile journey (A6/A46) to Newark in Eco Mode [Freewheels when lifting throttle in 'E' Mode] did nearly 90 mpg - hit traffic near end. This car will no doubt still be running in 20 years time and still giving good sensible practical use. I don't make many journeys outside most EV's Range, but during summertime take generally a trip every week of between 150-300 miles Cotswolds, Wales or Cromer - I start to have Range Anxiety when see only have 60 Miles left in tank and warning light comes on !*
Diesel vehicles give off Carcinogenic Gases that give millions Respiratory sickness and Death. 9 Million a year die from Fossil Fuel Pollution. Wars are fought to keep Heavy Crude( needed for Diesel) flowing from the Middle East. I watch in wonder at some Schools where the Parents and Buses line up on a Hot Day to pick up their Kids. Sitting with A/C on and waiting Children vacuuming up the Cancer Fumes. But as long as you are Happy and don't get Range Anxiety.
I would hire a large-capacity electric car when I need to drive 500 miles. For everything else, there's my cheap, reliable, zero-emissions, zero-tax, super-efficient budget EV with 80-100 mile range. :)
