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[protomech]

The capacity reported by the app is simply available amp-hours times present voltage - this is similar to Zero's maximum capacity rating, but has a small reserve below 0%.

My 2014 SR typically shows 91 Ah at 100%, at 117V the app shows 10.6 kWh (maximum). Actual energy available is around 9.4 kWh; however, if I calculate miles times average Wh/mile, it seems like 8 kWh or so is actually available.

[michalshawn]

Hey there
I wanted to calculate the expectet range of my bike on my way to work (a lot of city and some 80km/h pieces).

I startet with 100%, drove 36km to work and have 85% battery left, 38wh/km on this trip.
So the easy math to get the approximate range of (36km*100)/15 = ~240km

when i do this math with the 38wh/km i get a way higher numer: 38wh/km * 36km = 1368Wh right? When i calculate for the full 13khw of the battery i would get (36km*13000Wh)/1368Wh = 342km

Is the showed Wh/km not what i mean it is, or do i may not have the full 13kwh of the battery to use? Thanks für your advice

Hello there,

Based on your calculations, it seems there might be a misunderstanding regarding the energy consumption of your bike. Let's break it down to clarify things.

Using the first calculation, where you assume an energy consumption of 38 Wh/km, you estimated a range of 240 km. This calculation is incorrect because it assumes a constant energy consumption rate, which is not typically the case for most electric bikes. Energy consumption can vary based on factors such as terrain, riding style, and assist levels.

To get a more accurate estimate, you should consider the actual energy consumption you observed on your trip. You mentioned that you used 38 Wh/km during your commute. So, for a full charge of your battery, which is 13 kWh (13,000 Wh), you can divide it by the observed energy consumption of 38 Wh/km:

13,000 Wh / 38 Wh/km = 342 km

Therefore, with the observed energy consumption, you can expect a range of approximately 342 km on a full charge. This estimation takes into account the energy efficiency you experienced during your ride.

Regarding the ebike distance calculator, it would be helpful to adjust it to include variables such as terrain, riding style, and assist levels. These factors can significantly impact the energy consumption of an electric bike. By incorporating these variables into the calculator, users can obtain a more accurate estimate of their e-bike's range.

Remember that range estimates are approximate, and actual results may vary based on various conditions. It's always a good idea to have some buffer and consider factors like weather conditions, wind, and battery degradation over time.