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Thinking abut a cordless hedgetrimmer
On 02/05/2021 11:59, NY wrote:
"The Natural Philosopher" wrote in message ... That doesn't equate with a vehicle's range with a tankful of petrol compared to a battery full of leccy. And the battery weighs a lot more than the petrol. Bill no, its fairly close - leccy cars have about 200 miles range and petrol ones 400 - 600. 200 versus 400-600 is not "fairly close". its the same order of magnitude Not only do you have to recharge the battery more frequently, but every time you have to wait many hours, as opposed to 5 mins max when filling up with 60 litres of diesel. We have often done journeys of more than 200 miles, stopping only for brief loo breaks and maybe change of driver. If we had to factor in a much longer recharging stop, a journey of a few hours would turn into one with an overnight stop - or a long stop at a place of interest along the way. Oh I agree. Don't get me wrong. My point was really that while electric cars *are* close, there is certainly no cigar. Not even a hand rolled old Holborn. When cars have enough range to do a whole journey on one charging of the battery, then they'll be a viable replacement. We'll probably never get anywhere near the recharge rate of 60 litres of diesel (700 miles range) in 5 minutes, but then that is several MW of power. But if charging can be confined to overnight when you're not travelling (or 9-5 when you're in the office) then it's no great hassle. But having to charge during a journey is a definite disincentive to owning an electric car. Actually 5 minute recharges are *technically* possible. The trade-off is shorter battery life, less efficiency and a heavier battery. This is one area where development is actually making decent progress, -- The New Left are the people they warned you about. |
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