BrockWI said:I don't believe the 13 S model has a TCU, I thought I looked in to that initially and was told the S's didn't have them.
No, they don't - I didn't know you had an S. Maybe it is that 'other TCU' then.
BrockWI said:I don't believe the 13 S model has a TCU, I thought I looked in to that initially and was told the S's didn't have them.
BrockWI said:I believe you are correct, running the battery dead to many times may have killed it. It ran for 40 minutes, which would put it about 6Ah, that's not going to cut it. I will charge it back full again and try one more time but it looks like a new battery is in order. You may not have read, but I do regularly charge it. As far as bulk charging in two hours, that SHOULD be the case if the battery was kept at a decent capacity as it should just be topping off the battery, but alas it is not.
If only just getting a 12v battery would fix this, but I have had the problem of the Leaf running the 12v dead at least once a month since the car was new. This is actually the third battery now, this one has lasted the longest at 3.5 years, but I have been more diligent about charging it regularly. Whatever is running it dead once in a while is basically killing them when that happens.
BrockWI said:While I am all for lithium batteries how would simply swapping out a lead acid for a lithium battery stop the Leaf from running the battery dead? My problem isn't the battery or type of battery it is that the Leaf will randomly leave something running that runs the 12v battery down and kills it. I suppose a lithium with a good BMS would shut off the battery protecting itself, waiting to be charged back up, but at that point I would still have to jumpstart the car the same way, unless I am missing something?
5 Years for me, battery has worked flawless, the car is always turn key on and off, never any weird states in between.Stanton said:I feel your pain, but there's a reason this thread is called Replaced 12v Lead with 12v Lithium: swap that thing out and you won't have to worry about being stranded again (I'm going on 6 years now)!
Actually it does. Any automotive versions I've seen also come with it built in for safety reasons I assume. My wife and I having identical years and models, she has been through 2 leads in the past 7 years (one donated from mine when I changed to Lithium) If you run the Lead through the 20 hour discharge test only score 9AH in my experience, well below my 20AH Lithium. I leave my ODB bluetooth plugged in and running 24/7 and have all of that time since. Battery is always +13 volts if I do a random spot check even in sub freezing weather. As I said many times before, why didn't Nissan just use a lithium for the 12 volt system, but I guess an extra +$200 to cost couldn't be justified. :?LeftieBiker said:Does your lithium battery have a BMS?
LeftieBiker said:Does your lithium battery have a BMS?
knightmb said:Actually it does. Any automotive versions I've seen also come with it built in for safety reasons I assume. My wife and I having identical years and models, she has been through 2 leads in the past 7 years (one donated from mine when I changed to Lithium) If you run the Lead through the 20 hour discharge test only score 9AH in my experience, well below my 20AH Lithium. I leave my ODB bluetooth plugged in and running 24/7 and have all of that time since. Battery is always +13 volts if I do a random spot check even in sub freezing weather. As I said many times before, why didn't they just use a lithium for the 12 volt system, but I guess an extra +$200 to cost couldn't be justified. :?LeftieBiker said:Does your lithium battery have a BMS?
knightmb said:[Lithium] Battery is always +13 volts if I do a random spot check even in sub freezing weather. As I said many times before, why didn't they just use a lithium for the 12 volt system, but I guess an extra +$200 to cost couldn't be justified. :?
LeftieBiker said:The reason I asked is that those of us in the small EV community have found that a typical Chinese-built BMS is as likely or more likely to malfunction and cause a pack failure as is long-term degradation.
alozzy said:I've resisted posting to this thread for a long time, but I have to say that this is one of those posts where I'm astounded by how much attention it gets - 17 pages (now 18, sorry!) Really??
Knock yourself out, if you see any sense in spending $$$ on a 12V lithium battery, but honestly if my 12V lead acid battery starts giving me problems, I'll spend $70 on a new one and then forget about it for another 4 or 5 years. I definitely have better things to spend my money on...
The most my wife could get out of hers was about 3 years per battery and these are the ones that Nissan provides for replacement under warranty. She made the same argument though, so I do respect that paying more for something that may or may not be a problem is a good reason not to mess with the lithium. She got stuck twice because of the dead battery. Once while at work (cold day) and another time in the morning when it was cold and had to jump start it both times from mine while I am grinning the whole time :mrgreen:DaveinOlyWA said:alozzy said:I've resisted posting to this thread for a long time, but I have to say that this is one of those posts where I'm astounded by how much attention it gets - 17 pages (now 18, sorry!) Really??
Knock yourself out, if you see any sense in spending $$$ on a 12V lithium battery, but honestly if my 12V lead acid battery starts giving me problems, I'll spend $70 on a new one and then forget about it for another 4 or 5 years. I definitely have better things to spend my money on...
This thread exists BECAUSE it is not that simple. Some are seeing failures after ONE year.
As I understand matters, this is primarily an issue with older Gen 1 Leafs, and above all for those who leave their cars plugged in for long periods, barring one-off problems with phantom loads.
Is that correct?
LeftieBiker said:As I understand matters, this is primarily an issue with older Gen 1 Leafs, and above all for those who leave their cars plugged in for long periods, barring one-off problems with phantom loads.
Is that correct?
It's mainly a problem with pre-'15 leafs, especially with pre-'14. The phantom loads are maybe a bit more common than 'one-off' though. Leaving the car plugged in but not charging is a great way to drain the accessory battery, but the problem also occurs with people who don't do that. Further complicating the matter is the apparent fact that the '13 Leaf accessory batteries had a higher than normal defect rate, especially compared to the earlier Japanese-built Leaf accessory batteries.
LeftieBiker said:As I understand matters, this is primarily an issue with older Gen 1 Leafs, and above all for those who leave their cars plugged in for long periods, barring one-off problems with phantom loads.
Is that correct?
It's mainly a problem with pre-'15 leafs, especially with pre-'14.
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