scotticeberg wrote:NMC supposedly lasts 3000 cycles at 80% DOD. I've even seen 5000 cycles claimed. Time will tell.
Of course I'm talking along the lines of LG Chem, and not stuff like BMS Battery.
o00scorpion00o wrote:I would certainly consider a 2nd hand one provided the battery has decent life left.
Hillhater wrote:o00scorpion00o wrote:I would certainly consider a 2nd hand one provided the battery has decent life left.
do the on board systems keep a log of recharges?, part recharges? , total kWhrs recharged ? etc
how "hack - proof" is any of this data ?
Or how will a buyer know the remaining "life" left in the pack.?
Is there any accurate way of testing the true condition of one of these high $$$ packs ??
o00scorpion00o wrote:If we hear that the average leaf battery lasts 150,000 + miles then would it be wrong to think that that's the life of the battery ??
No, its lithium manganese. NMC is next generation battery which in 2009 Nissan said would be available in 2015.o00scorpion00o wrote:afaik it's nmc ?
o00scorpion00o wrote:.......So say it has a range of 60 miles on a charge at 70 mph that would mean 90,000 miles at 1500 cycles and only 60,000 miles at 1000 cycles....!
Hillhater wrote:o00scorpion00o wrote:.......So say it has a range of 60 miles on a charge at 70 mph that would mean 90,000 miles at 1500 cycles and only 60,000 miles at 1000 cycles....!
but who gets to drive at 70 mph consistently or average. The only way you could do that is on a country /interstate freeway...
..... and that is not the use cars like the leaf were designed for.
They are intended for urban commuting, which is low average speed , multi stop start situation.
my ebike battery has a capacity of 37v x 15 Ahr = 555Whrs theoretically, and i know it uses 1180 W at 30mph ( Wattmeter )
so by your calculations method i would have a range of < 15 miles and need to recharge every 30 mins or less .
Well the reality is i rarely get to ride at 30 mph around town (?) often riding for over 4 hours and traveling over 30 miles distance, without ever draining the batteries ( 400 Whrs used).
OK, on a Ebike there is the possibility of pedaling, but i dont do that much, the real difference is speed and power demand for that speed.
I suspect a typical Leaf is going to be doing a lot of 20 -30 mile trips with few full discharges. Majority of recharges will be "top ups" ... does anyone know how that affects battery life ? ..
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