Nissan Leaf SOH and Hx vs reality, 82% SOH and useless battery

  Рет қаралды 3,909

Srečko Lavrič

Srečko Lavrič

4 ай бұрын

This is a raw footage of a 2019 Nissan Leaf test drive. It is meant to educate all possible buyers to evaluate what battery data really mean. Many people think, that the SOH number directly represents how much range is still left in the battery, but reality is different. I'm not exactly shure how the Hx is calculated by the BMS (sorry, LBC), but this number seems to represent the inverse of it's internal resistance, perhaps the percentage of power it can still delivef. I wil open a discusion on www.mynissanleaf.com so please check in and add your perspective. Thanks for watching.

Пікірлер: 38
@tristramsnowdon5256
@tristramsnowdon5256 7 күн бұрын
Leafspy SoC 40.8%, car 0%, 676mV imbalance. Do not use Leafspy SoC to drive with in any leaf But very good demonstration about how misleading SoH is in any leaf pack except the original 24KWh My rule of thumb, if Hx is 10% (or more) lower than SoH, the battery is no good The higher cell charge voltage of ZE1 pushes NMC to the limit and is a big contributor to the problem
@decimal1815
@decimal1815 Ай бұрын
First video I've seen on YT that takes Hx into account.
@slavric
@slavric Ай бұрын
And the fact, that it is even more important then the SOH. In fact, it should be the part of SOH.
@xboxice2005
@xboxice2005 4 ай бұрын
wow so may weak cells, voltage sag is massive :(
@scottwylde8528
@scottwylde8528 Ай бұрын
Very good video, thanks! I am really surprised that a battery with 82% State of Health would perform so badly! I would never have expected that.
@DaddyEric222
@DaddyEric222 29 күн бұрын
This is exactly what the 2020 SV plus leaf I just bought does. Only got 75 miles of range… battery went from 68% to 32% after getting back onto the interstate highway. Dropped super fast after that too. I think the actual state of health is well below 50%
@Tron-Jockey
@Tron-Jockey 3 ай бұрын
Wow, nearly 1000 high power QT (DCFC) charges. Thats going to affect battery life especially if they were performed during elevated temperatures.
@slavric
@slavric 3 ай бұрын
That was the main reason for degradation. Also the fact, that temperature sensors are on wrong locations- They are on bus bars, way too far from the real heat.
@justaguy6216
@justaguy6216 Ай бұрын
It is so sad to see that Nissan was pretty much the first company to have a decent mass-market EV. This is now the state of it. BYD and MG seem to be of better quality, and they haven't even been making cars for a decade.
@slavric
@slavric Ай бұрын
When a new brand gets introduced to the market, it simply has to do it's best to build a strong user base, good reviews and to prove it is worth considering. I don't doubt that Chinese will do their best to attract and hold their EU/US customer base. Their quality and support will have to be impeccable. And it will be or they will fail. Nissan lost trust of many of their customers. When the word gets out it is hard to regain trust. We'll see soon.
@justaguy6216
@justaguy6216 Ай бұрын
@@slavric All the Japanese brands are lacking when it comes to EVs. I think Chinese cars will replace Japanese cars in the coming decade. Lots of countries are now starting to ban ICE cars sometime in the 2030-2050s. Koreans are doing great tho, we have an ioniq 5 and it's awesome.
@Amiigaf3
@Amiigaf3 Ай бұрын
My Nissan leaf 2018 40KWh is 190000 and running into the same issue when running at 50% battery or less. What is the solution? Module replacement or whole battery replacement? Also how much would it cost to replace either? Thx 🙏
@slavric
@slavric Ай бұрын
Buying new battery is hardly an option, because it is too expensive. Buying used battery is a huge risk since you never know what you will get and they are insanely expensive. Cell replacement is in my opinion the best option if you want to keep the car. There is no need for additional CAN bridge and the LBC learns new capacity slowly. In this car it went from 82% to 91% already without programming. Also it looks like it heats up less then the original. total cost is about 6,500€.
@ice-cp2vz
@ice-cp2vz Ай бұрын
Bin
@skratolin
@skratolin Ай бұрын
Gospod Srečko pozdravljeni. Sem iz Črnomlja in sodeč po videu sva skoraj "soseda". Vas bom kar takole vprašal v materinem jeziku: sem pred nakupom Nissan Leafa in vidim, da jih poznate v dušo. Na volje je avto z 41kWh baterijo,uvoz iz Nemčije, prodaja firma, po števcu narejenih 5000(pet tisoč), prva registracija september 2021. Avto res zgleda kot nov, cena zelo ugodna. Ali bi mi me moralo skrbeti kaj v zvezi z baterijo ali kaj drugega? Odločiti se moram do ponedeljka. Hvala za odgovor. Lp :)
@slavric
@slavric Ай бұрын
Pozdravljeni. Sicer niste napisali, kakšna je ta ugodna cena, ampak smatram da okrog 15.000 do 17.000€. Leaf je povsem v redu avto na splošno, ima pa zelo znano napako v zasnovi baterije. Avto je v redu za krajše razdalje in polnjenje doma, za daljše razdalje z vmesnim hitrim polnjenjem ga je pa škoda, ker bo baterija hitro degradirala. Jaz osebno ga zase nebi kupil, razen če bi bila cena res ugodna. Z njim lahko pričakujete kakih 200.000km, potem bo pa počasi treba razmišljati o zamenjavi baterije. Leafa ima žena za v službo in nazaj, občasno za v mesto. Za ostalo pa imam Hyundai kono, je veliko bolj varčen in trpežen avto in tudi pelje se bolj agilno, baterija pa bi morala zdržati približno dvakrat dlje. Obilo sreče pri nakupu.
@xboxice2005
@xboxice2005 22 күн бұрын
Did you end up getting a new battery? wish i had seen this video before buying the 40khw leaf i should have gone with the MG4
@slavric
@slavric 21 күн бұрын
I replaced the cells. You should bettery buy MG, if you ask me. They seem to be decent cars.
@MrRossi1805
@MrRossi1805 3 ай бұрын
What is the HX Value? You mentioned it is more important than the SOC, may you explain it to me please? I own a 40kW Leaf as well, my SOC is already down at 92%, 65.000km and less than 100 Fastcharges
@therandomtester9561
@therandomtester9561 3 ай бұрын
Hx is internal resistance I believe. Leafspy explaines all numbers and function pretty well.
@slavric
@slavric 3 ай бұрын
Please, check on the link, it is discussed quite in detail mynissanleaf.com/threads/leaf-30kwh-2017-any-opinion-on-those-graphs.34961/
@eddapostol
@eddapostol Ай бұрын
Your battery is almost dead and out or warranty. Who ever quick charged the car 971 times killed the battery. Was quick charged 971 times and slowly charged another 2351 times. Looks like a taxi. Mileage is way too high aswell for a car that wasn't used as a taxi.
@vladpalas
@vladpalas 3 ай бұрын
interesting issue, haven't seen it so far in any other vid. I would expec BMS to limit power output to try and avoid such voltage sag but seems that it's poorly implemented.
@FlyingFun.
@FlyingFun. Ай бұрын
Internal resistance is the best indicator for battery health, this is shown by voltage drop under load, that battery is very poor. I fancy a used ev but the reality is batteries have limited lifespan and so many cells in a car makes it expensive to replace. I have flown rc models with lipo batteries for many years and results vary wildly depending on quantity of battety in the first place and the way they are used. Some have lasted 15 years still going and others didnt make 6 months...
@GoingOffGrid101
@GoingOffGrid101 3 ай бұрын
i have a 40kwh leaf and same problem. :)
@donatassi
@donatassi 3 ай бұрын
Battery does not perform on heavy load. How long you can run on it in eco mode? Maybe somewhere in flat land and without full throttle that battery would last another 180K km.
@slavric
@slavric 3 ай бұрын
I doubt, that it would last so much longer. The cells are extremely inflated, just before bursting. Even if it would drive, it is far from safe. Highway also drains it instantly.
@donatassi
@donatassi 3 ай бұрын
@@slavric If you saw cells are physically damaged and inflated, then it may explain whats here. What is interesting here that leaf spy SOC and car battery percentage so different.
@donatassi
@donatassi 3 ай бұрын
​@@slavric I saw discussion on mynissanleaf. Thanks.
@ChucklesMcGurk
@ChucklesMcGurk 2 ай бұрын
That's pretty much exactly what you'd expect old batteries to do, not maintain voltage under load. Not sure what you were trying to prove
@slavric
@slavric 2 ай бұрын
I was trying to suggest that SOH by itself is a poor indicator of batery's useability so potential buyers are aware of this. Also this happened too quick. It should make at least 300.000km.
@lochainthomas6970
@lochainthomas6970 Ай бұрын
@@slavric Some of these cars will do 200 thousand km. Alot of it is about heat management, the leaf has passive not active heat so too cold or hot will hurt. Even a normal battery every car has, they can suffer from low temp in winters. 2019 is a car new enough to talk with Nissan, this is the best advice imo
@renmedia
@renmedia Ай бұрын
Wow. My advice: buy a second electric but as new as possible. Even if it’s a Chinese one. It will always be better than a 10 year Nissan with 82% SOH.
@pashko90
@pashko90 3 ай бұрын
Nice video. Nissan, you can do better. Another dead 40. I consider HX on 40 kWh packs as SOH because it's so much better representation of the real battery condition. Greetings from Los Angeles.
@slavric
@slavric 2 ай бұрын
Greetings back to you from my tiny Slovenia.
@slavric
@slavric 4 ай бұрын
Look at the GOM at this time: kzfaq.info/get/bejne/aciBpZVq3bWcdWQ.html
@lochainthomas6970
@lochainthomas6970 Ай бұрын
720mv !! dam
@pedrojosearocamanzanares793
@pedrojosearocamanzanares793 4 ай бұрын
Esa batería tiene celdas en mal estado...
Which Nissan Leaf Should YOU Buy?
17:15
Kenny Gillis
Рет қаралды 4,8 М.
Is it Cake or Fake ? 🍰
00:53
A4
Рет қаралды 19 МЛН
Why You Should Always Help Others ❤️
00:40
Alan Chikin Chow
Рет қаралды 123 МЛН
Are used EVs a rip-off?!
23:32
carwow
Рет қаралды 1,3 МЛН
Nissan Leaf 50kwh D.I.Y battery modules car range test
6:35
Nissan Problems | An Uncomfortable Situation
12:05
savagegeese
Рет қаралды 181 М.
Wait... Nissan LEAF Battery Replacement Just Went OPEN SOURCE!?
17:53
Transport Evolved
Рет қаралды 205 М.
Electric Car Batteries! Myth Busting & How Long Will They Last?
21:46
Electric Vehicle Man
Рет қаралды 115 М.
400 km "Winter Challenge" with a Nissan Leaf 40 kWh.
20:00
Hoojies Garage
Рет қаралды 867
How To Ruin Your Electric Car's Battery - 3 Common Mistakes
12:54
Engineering Explained
Рет қаралды 606 М.
How To Drive An Electric Car Efficiently!
16:48
Electric Vehicle Man
Рет қаралды 120 М.
Used Nissan LEAF battery hacking (SOH)
12:57
Grumpy Young Guy Reviews
Рет қаралды 40 М.
Is it Cake or Fake ? 🍰
00:53
A4
Рет қаралды 19 МЛН