I watched a few footage on EV, self-study. 3 times higher in carbon emission in production than combustion engine due to mining of Lithium(the golden triangle in S. America, Bolivia, Argentina and Chile, some from W. Australia), 750 ton brine to get 1 ton lithium, spending 60% river water for mine refining purpose affecting irrigation. Use of cobalt as well. But saving on such emission on annual basis.

Fire risk even when charging(not car accident), would spread to other vehicles(15 buses in a row in China) Hard to put out such fire since it would re-ignite when hot internally (420C) even no spark. Only means is to cool down the battery as well. Fireman gets to familiar with location of battery. Latest development is to add iron phosphate in the cell to lower down such risk.

Many European countries would adopt EV, no combustion engine by 2030. Big profit.

Parts are proprietary, hence high marked up cost. How about battery having limited life span?

Principle is to invert the battery DC to AC for controller feeding ac motor, as governed by accelerator(pedal). Frequency changing, more electronics. Some might have dc motor. There is another auxiliary battery for car equipment, hence needs a dc/dc converter. Can be quite sophisticated. Combustion engine, namely mechanical plant. Electrical aspect is the starting battery and motor, carburetor and spark plug. Processor for exquisite car.

要投訴

離譜

好似電池幾年後或夠期要更換的話，收費係2-3萬，似係小數目，

但！係要2-3萬美金計。＞＜"""

強迫Model X 同 Model S 車主更換插頭先有電叉,盛惠3000大洋,搶錢!!!