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battery watt hours vs motor watts


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Is there a rough formula to work out how long certain Wh capacity battery will last with a certain watt motor?

e.g. battery is 100Wh, will it power a 10Watt motor for 10 hours, all other things being equal?

I know gearing, wheel size, rider weight etc will all have an effect so am i just better in relying on manufacturer specified ranges?



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You can greatly extend he range of your EUC by not climbing the same hill twice, as going up and down hills uses the most energy.

Imagine a stream of water starting and ending on you and your destination. By following this imaginary stream you can avoid repeatedly climbing the same hill; you are being much more energy-efficient even though you might need to travel further.

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