- Jan 25, 2020
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This really should be stickied somewhere! It contains all the information most posts suggest, but in 1 handy and short article from Porsche itself.Just in case there is any doubt about max daily charging - see the following directly from Porsche
"A lithium-ion battery is subject to physical and chemical ageing, as well as wear and tear. This reduces the battery capacity, depending on the usage pattern and environmental conditions, resulting in a reduction in range and an increase in charging times as the battery ages. Due to the effect of temperature on battery and charging performance, as well as battery life, please consider the following when parking, driving and charging your car:
If possible, avoid permanent ambient temperatures of over 30°C, such as prolonged parking in direct sunlight.
If you cannot avoid ambient temperatures of over 30°C when stationary, connect the vehicle to the mains supply after use and charge the high-voltage battery with AC (alternating current) to a maximum charge status of 85%.
If the car is left stationary for more than two weeks, the ambient temperature should, if possible, be between 0°C and 20°C and the battery charge status maintained between 20% and 50% during this time.
For the shortest possible charging time, a battery temperature of approx. 30°C to 35°C is ideal.
If charging the car on a daily basis, the maximum charge status of the high-voltage battery should be set to approx. 80%."
Just to be sure .. I left the default profile to whatever it default was at and I added a timer to be used every day with the time when I generally leave for work and 10 degr (Celcius) pre-heat.