Pete-B Posted May 10, 2015 Share Posted May 10, 2015 Some bike sellers advertise their lithium bike batteries in different ways for example 36v/10ah or perhaps 396wh, what's the difference? Link to comment Share on other sites More sharing options...
Keithl Posted May 10, 2015 Share Posted May 10, 2015 Power = Amps x Volts ( P = I x V ) or W = A x V Therefore Wh = Ah x V So your 36 V / 10Ah battery will be 360 Wh. Keith. Link to comment Share on other sites More sharing options...
Pete-B Posted May 10, 2015 Author Share Posted May 10, 2015 Thanks for that Keith, much appreciated. Link to comment Share on other sites More sharing options...
bolero boy Posted May 11, 2015 Share Posted May 11, 2015 and if its of any use, 400 wh os a lot of power....I had a free upgrade from a 300wh to 400wh batter when I bought my bosch driven bike....range on Eco setting is over 100km. Link to comment Share on other sites More sharing options...
sshortcircuit Posted May 11, 2015 Share Posted May 11, 2015 Surely the 100km range must depend on the terrain and the amount of pedalling? Link to comment Share on other sites More sharing options...
sshortcircuit Posted May 11, 2015 Share Posted May 11, 2015 Oops duplicate posting Link to comment Share on other sites More sharing options...
lennyhb Posted May 11, 2015 Share Posted May 11, 2015 I see you got your Carthago Chris, you kept that quiet. Just got e-bikes, bloody things knackering me, doesn't make cycling any easier just go twice as far, twice as quick & up hills I wouldn't even think of going near before and only had it a couple of weeks. Must admit it is fun going flat out along the sea front straight into a force 8 gale and leaving mere mortal cyclists for dust. :D Link to comment Share on other sites More sharing options...
lennyhb Posted May 11, 2015 Share Posted May 11, 2015 shortcircuit - 2015-05-11 6:26 PM Surely the 100km range must depend on the terrain and the amount of pedalling? Chris did say on Eco setting, yes it does depend on the amount of effort with a pedelec the harder you peddle the more assistance the motor provides. A fully charged battery on mine gives estimated range on Eco of 95 miles, Turbo 35 miles. Talking to other Bosch users they reckon in Turbo mode 35 - 40 miles, using a mix of Eco & Tour 60- 70 miles. Link to comment Share on other sites More sharing options...
sshortcircuit Posted May 11, 2015 Share Posted May 11, 2015 Surely the terrain is the most important part as with pedalling. I travelled about 25 miles on relatively flat route with juice left. In the local hills here there is no way I would achieve the 25 miles. Again the weight of the cyclist is also relevant. Perhaps there should be a standard bikes should be measured to, carrying a specific weight over a flat surface and not left to some fanciful fictitious figures invented to creat sales. Link to comment Share on other sites More sharing options...
lennyhb Posted May 11, 2015 Share Posted May 11, 2015 I was quoting realistic figures for a Bosch crank drive, 35 miles plus with lots of steep hills should be easily achievable, normal riding with a few hills 50 miles minimum not a problem. Link to comment Share on other sites More sharing options...
sshortcircuit Posted May 11, 2015 Share Posted May 11, 2015 Surely simple calculations will tell you that the energy needed to transport an 18 stone man will be a lot more than to transport a 10 stone man, so how figures are quoted is beyond me as a battery can only give out a certain amount of energy? Link to comment Share on other sites More sharing options...
ron. Posted May 11, 2015 Share Posted May 11, 2015 sshortcircuit - 2015-05-11 8:44 PM Surely simple calculations will tell you that the energy needed to transport an 18 stone man will be a lot more than to transport a 10 stone man, so how figures are quoted is beyond me as a battery can only give out a certain amount of energy? The words "Up To" springs to mind, very relevant for electric bikes. Link to comment Share on other sites More sharing options...
lennyhb Posted May 11, 2015 Share Posted May 11, 2015 One would assume that the estimates are based on an average weight man, which I would assume is 75kg, how else could you do it. Suits me I'm Mr average , not quite I'm only 74 kg. :D Link to comment Share on other sites More sharing options...
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