On 29/11/2020 05:00, williamwright wrote:
Presumably the battery capacity drops with age and usage. That's another
variable then. Dare I put the heater on? Shall I try to drive without
the headlamps on? etc etc.

Bill
The heater certainly hammers the battery on my PHEV but the trick is to
use the app to pre-heat while plugged-in, this warms the battery and the
car. Alternatively, ensure the ICE is running at the start of a trip and
then switch to electric when everything has warmed-up.
To use a quote from Sir Humphrey: buying a pure EV at the moment is a
"courageous decision" and it will be many years before I feel that
courageous.