Cycleway town
Join Date: Jul 2014
Location: Milton Keynes, England
Posts: 1,402
Bikes: 2.6kw GT LTS e-tandem, 250w Voodoo, 250w solar recumbent trike, 3-speed shopper, Merlin ol/skl mtb, 80cc Ellswick
Mentioned: 7 Post(s)
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Friction drive on wet/muddy tyres and you're doing maths?! Lol
And the reason we use 54v on a 48v system is because of voltage drop. A half-full 54v battery is around 48v, and it's 42v by the time it needs charging.
Use a 48v battery on a 48v system and it'll cut out at the first steep hill.