Active cooling and far more time spent not fully charged or discharged. Think about how a laptop battery spends it's day: probably at 110 degrees and plugged i

Active cooling and far more time spent not fully charged or discharged. Think about how a laptop battery spends it's day: probably at 110 degrees and plugged it at 100% SOC. That's a perfect storm of horror for a li-ion battery. Tesla batteries spend nearly their whole lives at 70 degrees and between 20 and 80 percent SOC. That's the good life for li-ion.