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Post by chuq on Jun 24, 2018 21:54:02 GMT 11
Manufactured August 2012. I purchased in May 2016 - had 28795 km on it, an average of 632 km per month. As of January 2018 (20 months), we have added 19443 km to this total, for an average of 964 km per month. Lifetime total of 48238 km. Currently 10/12 bars SOH. Longest distance travelled in one day - 323.6 km. (Included one DC charging session @ 22 kW) Longest distance travelled in one day without DC charging - 290.6 km. It's been a lot of fun, and plenty more to come Minor update to my stats - sadly, I just went from 10 to 9 bars Odometer is 53510 km. (It went from 11 to 10 bars a few months after I got it in 2016, unfortunately I don't think I noted the exact date anywhere.)
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Post by chuq on Jan 17, 2019 7:59:32 GMT 11
Minor update to my stats - sadly, I just went from 10 to 9 bars Odometer is 53510 km. (It went from 11 to 10 bars a few months after I got it in 2016, unfortunately I don't think I noted the exact date anywhere.) Mine just clicked over 60000 km yesterday. (still 9 bars)
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Post by caroline on Jan 17, 2019 8:17:17 GMT 11
36,000km 9 bars (dropped at ~30k) SOH 67.8 AHr 44.5 Hx 45.7. Bought new April 2015.
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Post by rusdy on Jan 17, 2019 13:05:03 GMT 11
Hi caroline , I'm suspicious your 12V battery needs a change. The voltage from your screenshot is sitting at 11.68V and charging at 6.49A. Might need to monitor that. Mine is also on its last leg, but I'm pushing it .
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Post by caroline on Jan 17, 2019 13:14:11 GMT 11
Hi caroline , I'm suspicious your 12V battery needs a change. The voltage from your screenshot is sitting at 11.68V and charging at 6.49A. Might need to monitor that. Mine is also on its last leg, but I'm pushing it . Thanks I missed that... it’s about 12 months new I think. Had to get the TCU replaced because it was draining the 12V. Went through a few 12V batteries until they figured what the problem was. That was just over 12 mths ago.
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Post by caroline on Jan 17, 2019 13:38:52 GMT 11
Hi caroline , I'm suspicious your 12V battery needs a change. The voltage from your screenshot is sitting at 11.68V and charging at 6.49A. Might need to monitor that. Mine is also on its last leg, but I'm pushing it . rusdy what should it be charging at? I just booked it in for a check up on the 30th... hopefully I don’t have any issues before then
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Post by rusdy on Jan 17, 2019 14:17:05 GMT 11
Hi caroline , just need to ensure the voltage doesn't stay that low too often. Mine did drop to similar level like yours just the end of last year, but it quickly recovers from that (not sure why). I can see your charging current is pretty high, which indicates there is nothing wrong with your internal DC/DC charger. Ideally, it should be resting at 12.4 Volt or more (even more when the car is on). Mine hasn't dropped that low anymore since then. If it persistently lower than 12V, something is fishy. If that happens to yours again and again (now knowing you just changed your battery), definitely need to ask the dealer take a look at it. PS: typical cases when the car is on: - h overing around 13V (charging at 1 ~ 2 Amps) without lights and air-con on. - there are times it goes to 14.4 Volt (typical algorithm to charge lead acid to ensure no sulphation) with charging current going bananas (like more than 5A)
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Post by caroline on Jan 17, 2019 14:18:43 GMT 11
Hi caroline , just need to ensure the voltage doesn't stay that low too often. Mine did drop to similar level like yours just the end of last year, but it quickly recovers from that (not sure why). I can see your charging current is pretty high, which indicates there is nothing wrong with your internal DC/DC charger. Ideally, it should be resting at 12.4 Volt or more (even more when the car is on). Mine hasn't dropped that low anymore since then. If it persistently lower than 12V, something is fishy. If that happens to yours again and again (now knowing you just changed your battery), definitely need to ask the dealer take a look at it. Thanks rusdy I’ll keep an eye on it
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Post by caroline on Jan 17, 2019 14:28:42 GMT 11
Does anyone know what the Hx value means for battery health? Mine seems to be very low (45) compared to others on www.mynissanleaf.com ...There is not much info on there about why it would be low and LeafSpy doesn't give any clue except its a measure of battery resistance. Is there a thread on here where we post mileage / bar drops and LeafSpy stats? I thought there was but can't find it.
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Post by caroline on Jan 17, 2019 14:36:35 GMT 11
"Hx The meaning of this number is not fully understood but it appears to be inversely related to the battery internal resistance. As the internal resistance of the battery pack increases it is thought this percentage decreases. As internal resistance increases more energy is lost within the pack and the pack heats up more under load." From LeafSpy manual. I wonder if that's why my battery temps always site quite high around 27/28deg?
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Post by rusdy on Jan 17, 2019 14:52:55 GMT 11
"Hx The meaning of this number is not fully understood but it appears to be inversely related to the battery internal resistance. As the internal resistance of the battery pack increases it is thought this percentage decreases. As internal resistance increases more energy is lost within the pack and the pack heats up more under load." From LeafSpy manual. I wonder if that's why my battery temps always site quite high around 27/28deg? Yea, Hx is still a mystery to today. The internal resistance sounds the most logical guess to date. However, that shouldn't affect your battery temperature that much though, unless you do a race (high power lots of time) or long range driving (where the car sits 100kph and then fast-charged). Judging your current heat over east (I'm guessing your where about), that should be the normal reading (i.e. reflects the average temperature). The thermal mass of Leaf is pretty big.
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Post by caroline on Jan 17, 2019 14:58:34 GMT 11
"Hx The meaning of this number is not fully understood but it appears to be inversely related to the battery internal resistance. As the internal resistance of the battery pack increases it is thought this percentage decreases. As internal resistance increases more energy is lost within the pack and the pack heats up more under load." From LeafSpy manual. I wonder if that's why my battery temps always site quite high around 27/28deg? Yea, Hx is still a mystery to today. The internal resistance sounds the most logical guess to date. However, that shouldn't affect your battery temperature that much though, unless you do a race (high power lots of time) or long range driving (where the car sits 100kph and then fast-charged). Judging your current heat over east (I'm guessing your where about), that should be the normal reading (i.e. reflects the average temperature). The thermal mass of Leaf is pretty big. Yes on the east - Gold Coast - above 30deg outside today... but temps high at night too and after being garaged all day. I rarely park in the sun anymore - garage at home and work.
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Post by caroline on Jan 17, 2019 21:25:37 GMT 11
8pm 26deg outside - car has been in garage all day except 2x 4km trips...and battery sensors all currently reading between 29-30deg
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Post by brunohill on Jan 17, 2019 21:42:26 GMT 11
Its 32.1'C outside here at 21:30, Parked in sun at work for 12hrs at 41'C. Battery still has 10 Bars at 44,000 km.
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Post by Feng on Jan 17, 2019 22:09:48 GMT 11
Any idea how hot your battery got after a day in the sun? It's meant to be 39 at my work today and tomorrow so I chickened out and took the ICE car to work. I didn't want to leave it baking in the sun all day. Am I overreacting?
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Post by brunohill on Jan 17, 2019 22:46:57 GMT 11
I don't have leaf spy (yet). I have no mobile phone coverage, so a smart phone is not much use to me. The battery temp normally sits on 6 bars. I travel at 60 -80 kph to avoid roos (most of the time). As soon as I turn the air conditioner on, the extra 1.5 kWh takes it up to 7 bars, so I just open the window instead. It was 44.3'C yesterday, but we are getting a cool change on Saturday 35 ' C. The battery is under the car and there is a bit of an air gap, so they are really in the shade. My dog has actually dug itself a bit of a tunnel so it can sit under the leaf on a hot day.
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Post by rusdy on Jan 18, 2019 11:33:31 GMT 11
Any idea how hot your battery got after a day in the sun? It's meant to be 39 at my work today and tomorrow so I chickened out and took the ICE car to work. I didn't want to leave it baking in the sun all day. Am I overreacting? Your gut feeling is definitely being studied. EV batteries and climate change (more heatwaves) is not a good combo. Current design methodologies of EV battery performance seems to concentrate on northern hemisphere with their sub-freezing temperature (like Norway). I haven't seen much development for hot climate like ours. Sad...
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Post by rusdy on Jan 18, 2019 11:56:29 GMT 11
Hi caroline , I've just realised you have an interesting charging profile (no, I'm not stalking you, I'm just a battery geek!). You have 300 charge cycles to date with 36kk on the clock, which translates to 120km average between charges (from new). Does that mean you only charge your car only when it's completely empty? Or simply your driving profile prohibits you to charge more often? Relating to the 'suckiness' of first gen Leaf batteries, it's always better to charge more often (reducing DoD, Depth of Discharge), whenever possible. If that is possible (i.e. charge more often), definitely worth to try, in order to decrease your degradation rate. Although I hate to admit, it won't differ that much . Mine is pretty average compared to other users (I 'eagle eye' others' degradation rate. Gosh, that sounds terrible), i.e. 4-ish percent (with 25km average between charges):
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Post by caroline on Jan 18, 2019 12:16:18 GMT 11
Hi caroline , I've just realised you have an interesting charging profile (no, I'm not stalking you, I'm just a battery geek!). You have 300 charge cycles to date with 36kk on the clock, which translates to 120km average between charges (from new). Does that mean you only charge your car only when it's completely empty? Or simply your driving profile prohibits you to charge more often? Relating to the 'suckiness' of first gen Leaf batteries, it's always better to charge more often (reducing DoD, Depth of Discharge), whenever possible. If that is possible (i.e. charge more often), definitely worth to try, in order to decrease your degradation rate. Although I hate to admit, it won't differ that much . Mine is pretty average compared to other users (I 'eagle eye' others' degradation rate. Gosh, that sounds terrible), i.e. 4-ish percent (with 25km average between charges): I thought that was level 2 only but just realised it’s level 1 - definitely wrong - I do a level 1 charge top up every 2/3 night.... rarely go from 0-100%.... QC count also wrong - I’ve done at least 15-20
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Post by rusdy on Jan 18, 2019 12:23:29 GMT 11
I thought that was level 2 only but just realised it’s level 1 - definitely wrong - I do a level 1 charge top up every 2/3 night.... rarely go from 0-100%.... QC count also wrong - I’ve done at least 15-20 Ah, must be the TCU replacement reset the figure.
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Post by caroline on Jan 18, 2019 12:35:31 GMT 11
I thought that was level 2 only but just realised it’s level 1 - definitely wrong - I do a level 1 charge top up every 2/3 night.... rarely go from 0-100%.... QC count also wrong - I’ve done at least 15-20 Ah, must be the TCU replacement reset the figure. Ahh ok yes that must be it 👍 thanks!
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Post by caroline on Jan 18, 2019 12:38:40 GMT 11
Hi caroline , I've just realised you have an interesting charging profile (no, I'm not stalking you, I'm just a battery geek!). You have 300 charge cycles to date with 36kk on the clock, which translates to 120km average between charges (from new). Does that mean you only charge your car only when it's completely empty? Or simply your driving profile prohibits you to charge more often? Relating to the 'suckiness' of first gen Leaf batteries, it's always better to charge more often (reducing DoD, Depth of Discharge), whenever possible. If that is possible (i.e. charge more often), definitely worth to try, in order to decrease your degradation rate. Although I hate to admit, it won't differ that much . Mine is pretty average compared to other users (I 'eagle eye' others' degradation rate. Gosh, that sounds terrible), i.e. 4-ish percent (with 25km average between charges): Nice graph - wish I’d been more diligent with tracking mine! Hx drop is interesting
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Post by alison on Feb 8, 2019 7:49:41 GMT 11
3rd bar gone just under 65k kms. Battery warranty until August 2020. Will I make it?
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Post by empowerrepower on Feb 8, 2019 12:56:28 GMT 11
We lost our fourth bar one year after our third bar, with similar mileage. I think there is an excellent chance that you will lose your bar in time to claim on your warranty, fingers crossed. We have put in a warranty claim and are waiting for the battery to get to Bris.
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Post by EVangelist on Feb 11, 2019 18:27:38 GMT 11
We lost our fourth bar one year after our third bar, with similar mileage. If that happens to us we will miss by about 3 months.
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Post by Feng on Feb 11, 2019 21:38:46 GMT 11
You need to find excuses to go on long drives during summer. Keeping the battery warm but not abusing it might increase your odds.
Someone on the Nissan LEAF Owners Australia group on Facebook was talking about launching a class action suit against Nissan about the battery. You might want to look that up.
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Post by Deleted on Aug 20, 2019 8:25:13 GMT 11
200k kms in imiev Sunday 11 August at mounts bay road roundabout Perth Targawest Sunday Attachments:
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Post by Feng on Aug 20, 2019 11:18:28 GMT 11
That's awesome, congrats. I thought I was doing a lot with 145k. How's the battery degradation going and any future plans?
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Post by Deleted on Aug 20, 2019 15:09:09 GMT 11
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Post by EVangelist on Aug 20, 2019 22:46:44 GMT 11
Gosh, the longest I’ve ever owned a car is 19 years, and didn’t quite do 190,000 km in it. 200,000km is... a long way.
In the LEAF, we clocked up 50,000km last week. 5 years ownership at the end of October. 3 bars down. Sweating.
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