EV drivers urged to preheat batteries amid cold weather (aka winter)

Posted: January 19, 2024 by oldbrew in Batteries, Temperature, Travel, weather
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Not the latest model


EV owners might want to consider the risks of putting a heat source near a lithium battery. If that goes wrong, it can really go wrong. But if they don’t or can’t preheat their battery in cold conditions, e.g. it’s parked in the street, they can look forward to a significant range reduction, made worse by using the car heater.
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In the wake of the coldest night of the winter in the UK, Edmund King, President of the AA, has issued guidance to electric vehicle (EV) owners, emphasising the importance of preheating their cars and charging overnight, reports Energy Live News.

As the nation grapples with snow and ice that led to the closure of numerous schools, Mr King warns that colder temperatures can adversely affect EV batteries, leading to longer charging times and reduced efficiency.

The AA noted that electric cars may experience a reduction in range ranging from 10% to 20% in colder temperatures.

This is attributed to the diminished efficiency of the lithium-ion battery, exacerbated by drivers activating features like heating.

This advice comes as electric vehicle users in the US, particularly in Chicago, have faced difficulties due to freezing temperatures, with reports of Tesla owners abandoning their vehicles.

Full report here.

Comments
  1. saighdear says:

    As I’ve asked before and received no answer: where does the electricity go to? My Diesel & Petrol tanks still contain xy gallons of fuel regardless of temperature – so I will always get from 300 to 700 miles per tankful or a day’s ploughing. Another reason for ICE.

  2. ivan says:

    Why are they so surprised, it has been well known that all batteries have reduced output in cold weather. The only reason that car and tractor starter batteries do their job is because they are only required to supply power for a very short period. Once the engine starts the alternator supplies power to replace what was removed in starting – that doesn’t happen with electric cars.
    I haven’t looked up electric car batteries work but assume they don’t work when frozen solid as they found out in Chicago. There has never been a good reason for electric powered transport even though there were electric milk floats delivering the daily milk during the 40s to 60s.

    @saighdear – to answer your question yo need to lookup how electrons flow through the battery – if they are slowed down the electricity doesn’t flow.

  3. oldbrew says:

    Sky report:
    One expert told the news outlet that cold weather can impact the ability of electric vehicles to charge properly.

    “It’s not plug and go. You have to precondition the battery, meaning that you have to get the battery up to the optimal temperature to accept a fast charge,” said Mark Bilek of the Chicago Auto Trade Association.
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    Not plug and go – who knew? Charging stations need to be indoors if cold weather causes battery problems.

  4. oldbrew says:

    Toyota to roll out solid-state battery EVs globally in a couple of years
    January 11, 2024

    (Reuters) – Japan’s Toyota Motor will in a couple of years globally launch vehicles with solid-state batteries that charge faster and last longer, an executive said on Thursday at an investment summit in India.

    Solid-state batteries promise to dramatically improve the driving range of electric vehicles (EVs), a key element of a strategic pivot Toyota unveiled in June to make up ground lost to Tesla and Chinese rivals, such as BYD, in the EV race.
    . . .
    “We will be rolling out our electric vehicles with solid state batteries in a couple of years from now,” said Vikram Gulati, the India head of Toyota Kirloskar Motor. It “will be a vehicle which will be charging in 10 minutes, giving a range of 1,200 kms (750 miles) and life expectancy will be very good“.
    [bold added]

    https://www.reuters.com/business/autos-transportation/toyota-roll-out-solid-state-battery-evs-couple-years-india-executive-says-2024-01-11/
    – – –
    Good sales talk at least. If it happens, today’s EVs would look prehistoric.

  5. catweazle666 says:

    “charging in 10 minutes, giving a range of 1,200 kms (750 miles) and life expectancy will be very good“
    Through a cable as thick as your thigh and dimming the lights within a fifty mile radius…

  6. coecharlesdavid says:

    I doubt the boss of Toyota Japan is in total agreement with his Indian colleague. In fact it is probably news to him.

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