Tesla S Owner's Manual page 157

Subsystems
Battery - High Voltage
Type
Rating
Nominal Voltage - 85, 90, and 100 kWh
Nominal Voltage - 60, 70, 75 kWh
Temperature Range
156
Liquid-cooled lithium ion (Li-ion)
60, 70, 75, 85, 90, or 100 kWh (at
beginning of life)
350 V DC
300 V DC
Do not expose Model S to ambient
temperatures above 60° C or below
-30° C for more than 24 hours at a time.
Model S Owner's Manual