![]() Heavy bike, big battery, higher voltage example: 52V, 25Ah = 1,144Wh potential. Light bike, small battery, lower voltage example: 48V, 7Ah = 336Wh potential. So you can see that the range alone doesn't really tell us much about the system as a whole. However that compact car is getting 32-38 combined miles per gallon. Compare that to a compact car that carries 14 gallons of fuel you can expect it to get 448-532 miles on a full tank. But depending on a number of factors, you can expect just 4-8 miles per gallon. one can expect 960 to 1920 miles on a full fuel load, roughly. For instance, looking at a diesel semi tractor-trailer truck, 240 gallons of fuel is the normal capacity, so, depending on load, speed traveled, vehicles specs, terrain, etc. ![]() The two combined would give a more wholistic view of the bike. Instead of making range the only factor, include the efficiency. I'm not trying to start an argument here, but I'll include some additional info to back up my suggestion. I fully agree with this idea, and I have one suggestion which may make it more intuitive and marketable outside of EV enthusiasts. Perhaps Endless-Sphere could create a "Certification" for Ebike manufacturers and retailers who agree to use our formula for range calculation in their advertising.Ĭall it draconian if you want, but I think the ebike buying community would greatly appreciate some straight talk with respect to range, even if it is very generalized. The equivalent of the above formula would be 32 KPH speed, and 12.3 Watt-Hours/Km, which is much less easily remembered. I argue that WATT-HOURS should be THE ONLY value that can be reasonably compared between any number of ebike power systems.Īnd the Formula for Calculating range should be as follows:īattery Nominal Voltage x Battery Capacity (Amp-Hours) / 20 Watt-Hours/Mile.Ĥ8V-12Ah Battery - would have 48x12 = 576 Watt-Hours of Energy / 20 WH/Mile = 28.8 Miles of range (at 20 MPH, motor only).Īpologies to the rest of the world that uses the metric system. The POINT is to make a simple method for less experienced ebike customers to assess range between the different bicycles they are looking at, and the most critical component of range is the energy capacity of the battery, in Watt-hours. Yes, there will be minor differences in the efficiencies of these systems. The intent is NOT to argue about the minor efficiency differences between system A (DD Hub Motor) vs. Conditions would also include: a flat, smooth road, no stopping & starting or hills, on an upright mountain bike (high drag coefficient). I propose the value of 20 Watt-hours per mile at 20 MPH, since the current US ebike guidelines limit legal ebike speeds to 20 MPH, and this is a speed that can be achieved relatively easily with a legal 750W motor. And the values used should be towards the conservative side of the spectrum, that one can reasonably expect to achieve, if followed. ![]() Range should be based on motor power only, at a specific speed, and under the most simple conditions. So many ebike manufacturers and retailers embellish range claims using tricks that we experienced ebikers know are deceptive at best and down right ludicrous at worst.įactoring Human power into the calculation is something I personally feel needs to be eliminated, because you just can't make a realistic and honest assessment between two individual humans and their power output. Note: To use the eBike Flow app, you need at least iOS 15.There is absolutely NOTHING more confusing to the inexperienced ebike purchaser that understanding potential range with respect to the ebikes they are considering. This option is now also available to our Android users. Of course, you can also continue to import the routes you have created manually.ĭid you know that all your activities are recorded as soon as you start pedalling? You can now freely choose a title for each activity. Komoot in Flow: Your Komoot data is now automatically and thus even more quickly synchronised with the eBike Flow app. If you retrospectively modify a route that you have already created, you can now save it under a different name. The final touch: You want a better overview of your planned routes? That's what our latest update brings you. After each ride, you can see the calories you've burned in your activity details. Good things come to those who sweat: We have added an important statistic to your fitness data: calories. With it, you can easily export your fitness data to analyse it in detail, use it in your videos or share it. The new FIT format also stores information such as your average performance or maximum cadence.
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