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Post by Deleted on Apr 19, 2016 23:19:43 GMT 11
One guy just lost his bar at 12000 kms
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Post by jake on Apr 19, 2016 23:58:44 GMT 11
No one really knows what the battery will do when it gets older, not even Nissan. There simply isn't enough cars old enough to see any meaningful data. The expectation was that degradation would slow over time, but so far, battery degradation in the Leafs has been fairly linear. One of the problems is that a weak cell puts more pressure on the stronger cells. Cell balancing will probably become more important as the battery gets older. Probably a good reason to have the car serviced regularly because the specialist dealers have equipment to tweak the battery. Cell balancing is done by the car itself after being left at a 100% charge for 2 hours. Maybe a reason to do this occasionally, although because the car underestimates the charge time, cars that are charged to 100% would probably have their cars do cell balancing quite often. Maybe cell balancing isn't as important at lower levels of charge? All Nissan could do to simulate battery life was to cycle the battery very quickly, but this has not resulted in the real life expectation because of so many variables of use, temperature, etc. The short answer is, no one will really know until the cars are 8 to 10 years old. Since that won't be until 2018 at the earliest, we have a while to wait. We are all true trail blazers. Some information on Cell balancing. It appears cell balancing is only important if you 100% charge or run your battery low. www.mpoweruk.com/balancing.htmI read this on one of the forums (either here or USA) and to be honest I don't know if it is true or not, but it would make sense.
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Post by caroline on Apr 20, 2016 9:12:11 GMT 11
One guy just lost his bar at 12000 kms I lost first bar at 6500 km
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Post by EVangelist on Apr 20, 2016 12:28:33 GMT 11
One guy just lost his bar at 12000 kms I lost first bar at 6500 km I lost first bar at 11500 km - about 16 months into ownership. Since then I recharge to 80% daily, rather than deep cycle the battery (discharge to 2 bars or so, then recharge to 80% every 2-3 days). That seems to be the consensus on how to treat your battery nicer.
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Post by caroline on Apr 20, 2016 12:31:06 GMT 11
I lost first bar at 6500 km I lost first bar at 11500 km - about 16 months into ownership. Since then I recharge to 80% daily, rather than deep cycle the battery (discharge to 2 bars or so, then recharge to 80% every 2-3 days). That seems to be the consensus on how to treat your battery nicer. Yes I generally only do a full charge when I need it on the weekends - usually plug in to charge to 80% 2-3 times a week as needed. Interestingly the guesometer has never been below 8 - it jumps straight to --- from 8... but rarely let it get that low... and never been turtle
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Post by caroline on Apr 20, 2016 12:58:10 GMT 11
I lost first bar at 6500 km I lost first bar at 11500 km - about 16 months into ownership. Since then I recharge to 80% daily, rather than deep cycle the battery (discharge to 2 bars or so, then recharge to 80% every 2-3 days). That seems to be the consensus on how to treat your battery nicer. Attachments:
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Post by Phoebe on Apr 20, 2016 15:45:30 GMT 11
I lost first bar at 6500 km That really is a bit low. Only ever heard of 1 lower
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Post by moyanous on Apr 20, 2016 17:11:28 GMT 11
I lost my first bar a couple of days ago at 25300 km. Car was purchased in Nov 2014. Never done any quick charges, and only charged to 100% 5 or 6 times.
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Post by jacky on Apr 20, 2016 19:40:01 GMT 11
I lost my first bar a couple of days ago at 25300 km. Car was purchased in Nov 2014. Never done any quick charges, and only charged to 100% 5 or 6 times. I brought mine in September 2014. Driven 31,000 km now and (touch wood) still have 12 bars. I have done many DC quick charges and charged to 100% at least once a week. I am in Melbourne. Where are you from? Maybe there are climate related factor or the way the car was stored before sold to us.
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Post by moyanous on Apr 20, 2016 20:59:06 GMT 11
I lost my first bar a couple of days ago at 25300 km. Car was purchased in Nov 2014. Never done any quick charges, and only charged to 100% 5 or 6 times. I brought mine in September 2014. Driven 31,000 km now and (touch wood) still have 12 bars. I have done many DC quick charges and charged to 100% at least once a week. I am in Melbourne. Where are you from? Maybe there are climate related factor or the way the car was stored before sold to us. I'm in Perth. My car was trucked over from the Eastern states (they ran out of grey Leafs in WA). I left it out in the car park at work a lot of the time.
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Post by duncan on Apr 20, 2016 21:27:24 GMT 11
I'd be happy to take on the mechanical work of the battery swap, but I agree I'd want more info on anything that needs to be matched via Consult at the same time. GTR for example has the same issue with swapping the gearbox as it needs to be synced with the ECU...but there are people in Oz who have worked that out (eg Gary at Just Jap)
It will very much depend on price from Nissan Oz vs a parallel import
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Post by caroline on Apr 21, 2016 8:22:09 GMT 11
I lost first bar at 6500 km That really is a bit low. Only ever heard of 1 lower And I thought I had the honour of having the lowest in Australia! Someone on this forum?
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Post by caroline on Apr 21, 2016 8:25:06 GMT 11
I lost my first bar a couple of days ago at 25300 km. Car was purchased in Nov 2014. Never done any quick charges, and only charged to 100% 5 or 6 times. I brought mine in September 2014. Driven 31,000 km now and (touch wood) still have 12 bars. I have done many DC quick charges and charged to 100% at least once a week. I am in Melbourne. Where are you from? Maybe there are climate related factor or the way the car was stored before sold to us. Seems like same kind of use as mine but I'm in a warmer climate... I'm upto 10,000km now in 12 months... Bought new April 2015. All summer my battery heat indicator was showing 6 bars - even when garaged over night. Has only just now dropped back to 5 with the cooler temps finally arriving.
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Post by Phoebe on Apr 21, 2016 9:27:39 GMT 11
That really is a bit low. Only ever heard of 1 lower And I thought I had the honour of having the lowest in Australia! Someone on this forum? Don't know. It was quoted on this forum by g4
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Post by datsunleaf on Apr 21, 2016 19:24:26 GMT 11
Hmm I wonder if I have the lowest to have lost 3 bars?
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Post by jake on Apr 23, 2016 13:13:11 GMT 11
Climate seems to be the biggest factor in losing bars. The hotter the climate, the faster you will lose bars.
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Post by Phoebe on Apr 23, 2016 15:28:45 GMT 11
Climate seems to be the biggest factor in losing bars. The hotter the climate, the faster you will lose bars. Not quite. It's also how exposed your LEAF is to the climate it's in. Here in Maitland in the Hunter Valley, it gets hot frequently but my LEAF is always garaged and even when I am out I never have to park in the sun. MY battery thermometer has never gone above 5 bars. I think that is the important factor rather than how hot the air temperature is.
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Post by southernvolt on Apr 23, 2016 17:35:50 GMT 11
I lost my first bar a couple of days ago at 25300 km. Car was purchased in Nov 2014. Never done any quick charges, and only charged to 100% 5 or 6 times. I lost my first bar at around 40,000 km.
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Post by hieronymous on Apr 23, 2016 18:56:57 GMT 11
Yes, it is how owners manage their HV battery temperature, not the climate per se. However, as we have seen with so many losing a bar in the past few months, all with 2012 built cars, calendar age is the best general pointer to the likelihood of bar loss.
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Post by Phoebe on Apr 23, 2016 19:53:03 GMT 11
Yes, it is how owners manage their HV battery temperature, not the climate per se. However, as we have seen with so many losing a bar in the past few months, all with 2012 built cars, calendar age is the best general pointer to the likelihood of bar loss. Except that I have had mine since November 2012 and I still haven't lost a bar!
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Post by hieronymous on Apr 23, 2016 20:30:44 GMT 11
Sure, it's a pointer, not a guarantee! If you like, an average with some nearer 3 years and others 5 or more years, probably depending mostly on exposure to heat.
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Post by Phoebe on Apr 23, 2016 21:40:33 GMT 11
Yep!
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Post by jake on Apr 24, 2016 2:18:25 GMT 11
Actually there is a direct linkage with climate and battery life expectancy. I repost my earlier link. www.electricvehiclewiki.com/Battery_Capacity_Loss Note the part on the battery ageing model. All the cities in the world with Leaf ownership are listed. But Phoebe's car will probably be the exception because her car isn't exposed to the climate very often. I'm not sure how much calendar age is a factor. I think Phoebe's car will be a good test of this. Most of the research undertaken so far has shown that quick charging, charging to 100% etc has not hurt the battery much at all. High temperature seems to be the only thing that will really lead to early deterioration.
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Post by jake on Nov 2, 2016 10:04:26 GMT 11
I have lost my first bar at 33,900 Km. Charge 100% 4 days a week and 80% 3 days a week. Had the car almost exactly 1 year. Haven't really noticed any reduction in range. I now no longer stare at the remaining charge as I drive and suffer very little range anxiety as I have realised there are more chargers around Melbourne than I realised. I have been close to empty a few times and once in turtle but I have never been stranded. It is by far the best car I have ever driven and I will keep driving it until the next affordable electric car comes along whether that be a Tesla, new Leaf or whatever. By the time I will need a new battery I will want to upgrade to another.car.
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Post by 4wardthinking on Nov 3, 2016 7:30:58 GMT 11
Nissan here don't have any way to tweek the battery. They only repeatedly empty and charge the pack, they can use C3+ to reset the data the pack has stored, but the same scenario will return. The obvious change is a S/W update the car, which is only changing the algorithm used by the car, sadly it can't physically adjust the cell. The real test is power produced. No algorithm can change that facet.
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Post by 4wardthinking on Nov 3, 2016 7:35:34 GMT 11
Just to add here. The LEAF is a great vehicle, and have absolutely no intention of parting with it. It's the franchises that let the vehicle down. So my take us to steer clear of them as much as possible. I figure that if the car has a finite life-span, then it is more than likely that one method will be far less expensive over-all.
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