Excellent video! Also just to add for people who may use the metric system like myself :D 1 wh/mile = 0.621371 wh/km 10 pounds = 4.53592 kilograms 10 / 1 = 10 (as per formula) therefore 4.53592 / 0.621371 = approx 7.3 (7.299857894880836) So... wh/mile = weight in pounds /10 wh/km = weight in kg / 7.3 (approx)

@jashwanths2616

2 жыл бұрын

Awesome work dude 👍👍 thx

@shungualpha2574

2 жыл бұрын

thankyou that was my question while watching

Thanks Sir, watching your videos and gathering all this priceless knowledge. Stay blessed!

WOW, that was easy to understand and calculate. Thanks to you.👍

This is really good 👍🏼👍🏼. Because of lockdown, we haven't been able to do some real world testing of our electric vehicle which we are building for our engineering final year project so your video here really really helps❤️❤️❤️. Lots of love from India 🇮🇳

Answered so many questions. Thank you

Thanks for the informative video, very helpful for an electrical engineer.

very good informations, thanks a ton!

Geez, I love watching your vids. #favourite

Well explained

Great explain

Cant wait to attend his class.

proud to your experience

informative video.

Thank you so much sir.

Thank you sir

Really enjoying your videos; they're helping me determine whether an EV conversion on a project of mine is worthwhile. I was a little surprised to find, by using your calculations, that my 4,500lb car would only have a range of about 100 miles even if I used the full battery array from a Tesla Model X (about 60,000wh). Even weighing 1,000lbs less, that means my car would have range a little under 1/3 of the Model X's. Is the Tesla system optimization really that superior to what can be achieved by a home builder? I would have thought $20,000 of batteries would yield a longer range.

@ev4u

4 жыл бұрын

You have to realize that the Tesla has low rolling resistance and a low drag coefficient. That is why conversions seldom have the same range per kWh as a Tesla. FYI: The national average is 3.1 miles per kWh.

How chek lithium battery mileage Regards

Thank you so so much. You have helped so much. I would attend your course but I'm from South Africa.

Thank you for the video :) i have a question if you can answer me, my project is to make an electric vehicle from scratch not a conversion from another vehicle, so i have a 5000W 48v BLDC motor and after calculating the battery pack capacity using your formula i found that i need a 1200W battery pack and to have the same voltage as the motor, that means that i need a 48v 25ah Battery pack in order to run 20 km with a mass of 350 kg for the vehicle , Now does that make sense ? a 1200W battery is ennough for a 5000W BLDC motor ? Please answer me i really need the answer for my project, THANK YOU!

@ev4u

4 жыл бұрын

Please address questions to: info@EV4Unow.com

does the tipe of motor affects the WH/mile ? also, great video! 🙌🙌🙌🙏

@ev4u

7 жыл бұрын

Motors that are designed for this purpose tend to be pretty close in weight and efficiency. We have not observed a difference in the WH/mile usage in motor types that are normally used in conversions.

@felixcordero468

7 жыл бұрын

EV4U Custom Conversions, so it can be applied to a DC brushless motor ? thanks for answering 🙋

@ev4u

7 жыл бұрын

Yes

Can we find range by adding all the resistive forces like air drag ....rolling resistance ....grade resistance.....and converting it into watts and then dividing battry capacity by that added resistive forces and then multiplying the ans with the speed .......will this work out

@ev4u

2 жыл бұрын

No idea, as it is way too much work compared to our tried and true method.

@jashwanths2616

2 жыл бұрын

@@ev4u ok thank you for your reply sir

350 watt electric motor with 20 amp controller can be connected to 30 or 40 amp battery?

@ev4u

Жыл бұрын

Please address your questions to: info@EV4Unow.com Thank you for watching.

Are these calculations same for a two wheeler vehicle?

@ev4u

5 жыл бұрын

We have not tested it on two wheeler vehicles.

EV4U, Your magical number "weight/10" widens my eyes. It took mankind thousands of years to arrive to Einsteintical formulas but you did it in 21 mins. Anyhow, Although you have not done test runs on 2 wheeler to capture energy consumption for a given stretch but I still have a question and rather I seek recommendation weather I can consider Weight/(greater than >10) since rolling, drag etc is less than 4 wheel anyday.

Would be worth to install a gasoline generator to expand range?

@ev4u

2 жыл бұрын

In my opinion it is not. Thank you for watching and please subscribe to the channel.

Would this formula differ for two-wheelers? If so, why would it differ?

@ev4u

3 жыл бұрын

No idea, as we do not have enough experience with two-wheelers. Differences in rolling resistance, drag coefficient, etc. The formula is based on real world testing which we have only done with four wheel vehicles under 5,000 pounds.

How come this formula (watt/hour per mile) doesn't work for tesla model s. The car weighs 4950 Lbs and goes 370 miles with 100kh/hour battery. According to the formula you presented its supposed to go only 202 miles.

@ev4u

4 жыл бұрын

The formula only applies to conversions. Tesla's are a purpose built vehicle and are much more efficient than a conversion.

Would it be possible to contact you too answer some questions that I have? Great videos. You are answering so many questions have, but I have more. Thank you

@ev4u

7 жыл бұрын

Address questions to: info@EV4Unow.com

Sir, what is 2000# or 2300# ?

@ev4u

5 жыл бұрын

2,000 pounds or 2,300 pounds

We do 45 mile loops. 20 miles. ???

@ev4u

4 жыл бұрын

Not sure if there is a question here. The route that we use for range testing is a forty five mile loop. Combination stop and go traffic with some highway for half the distance and freeway driving for the other half.

12:32 How this value came.. 11,500 Wh calculations? How ?.

@ev4u

3 жыл бұрын

Please direct questions to: info@EV4Unow.com