If you pump out the old liquid how do you charge for the new? With petrol you pay for what you put in... if the tank was half full you only pay for half a tank (unless your an idiot and spill lots on the forecourt). What if the battery has half charge...
Bearing in mind fuel cost (and recharges) relates to the energy used between recharges will they just charge you full whack even for a 'top up'? £50 for a 'tank' whatever mileage you did? Nice idea, but seems impractical in the real world.
Turn lecky (from nuclear/fusion asap) into petrol & stop wasting time inventing new e-cars.
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How do you price it?
If you pump out the old liquid how do you charge for the new? With petrol you pay for what you put in... if the tank was half full you only pay for half a tank (unless your an idiot and spill lots on the forecourt). What if the battery has half charge...
Bearing in mind fuel cost (and recharges) relates to the energy used between recharges will they just charge you full whack even for a 'top up'? £50 for a 'tank' whatever mileage you did? Nice idea, but seems impractical in the real world.
Turn lecky (from nuclear/fusion asap) into petrol & stop wasting time inventing new e-cars.