Normal behavior for batteries in cold weather, even though 34F is not that bad given the arctic blast we have been seeing this last week. Our temps have reached single digits and the battery life has gone way down as a result.

 

There is a lot of power loss to warming up the batteries in the cold weather. I have a Hummer EV and with the recent cold spell I'm losing about 15-20% of my range.

 

My RR is garaged, so while it’s dipping into the low 20s at night the car itself (and I presume the battery) is sitting at perhaps 35. I wonder if there’s a way to keep the battery warm by plugging in the car overnight. I wouldn’t mind trying this experiment.

 

Not sure about range rover but most EVs have “pre conditioning” setting that will warm the batteries when plugged in . This will help some but you will still see a drop in range in any colder weather.

 

You're lucky if you live where 34F is considered cold.

We sometimes have it under 0F, an then range drops to 50% of what I have at summer. So 25-30 miles of range. It's not just battery heating, it's more about battery performance in different temperatures. You can google it. Speed of chemical reaction is the key.

In short - the warmer it is the bigger is your car range (unless it's extremely hot) but your battery lifetime drops fast. In cold it's the opposite. Performance drops, but battery health preserves better.