energy-efficiency

Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical, electric power, mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1.

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    Impact of battery heating

    I have easily got 239m out of my Xpower when driven to get range (100% to 10%ish), and regularly get 190-200 driving in a more spirited way (but with a fair amount of commute built in). After having it a year and a bit, I have only just found that turning on battery heating can knock at least...
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