TomT wrote:Until I had some VERY concrete evidence that temperature degradation was truly no longer an issue, I'd not pay any more... "Fool me once... (tm)"
KJD wrote:What would you be willing to pay for a LEAF with a 36 or 48kWh pack ?
Well... Two of the big reasons for temperature degradation are:
1. Current draw vs Total Capacity
2. Rate of Charge.
If you blast down the freeway for 30 minutes at 75 mph... your current draw with be a Large Percentage of the total available power
and Battery Temperature Goes UP.
If you Quick Charge at a very high percentage of battery capacity say 20 KwH in 30 Minutes then: Battery Temperature Goes UP.
Now.. double the battery back capacity and do the same thing.
In both cases the Battery Temperature Rise will be lower - and less detrimental - because the percent of capacity draw or charge is Half
while the same thing is accomplished.
this doesn't take the place of chemical or physical changes in the battery construction needed to make them play in Phoenix in July...
but it will HELP. and in your SoCal zone and driving environment it will help a LOT. Also, for the same use, the number of charge cycles is also cut in half,
and the number of deep discharges and over 80% charges can effectively become zero... and that really improves longevity when the battery operates in that 20-60 % sweet spot. Notice I am NOT saying anything about the nutcake 600-700 lbs additional weight added to a Leaf... which isn't going to fly.