Sondors first impressions
- Thread starter Tara D.
- Start date
scmike
Active Member
This is not most ebikes, its a 61 lb fat tired ebike plus a 161 lb rider using 15 watt hr... 15 watts is only .02 hp ... It just seems like too much rolling resistance to overcome... I wish I was wrong but it just does not compute... What am I missing?
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vincent713
Active Member
I was shocked myself, could he setup the computer wrong?
Edit: He was using a Garmin Edge 305 GPS, it doesn't control the bike but only tracks the details of the bike via GPS. Here are the data from his GPS.
https://connect.garmin.com/modern/activity/838680398
Edit: He was using a Garmin Edge 305 GPS, it doesn't control the bike but only tracks the details of the bike via GPS. Here are the data from his GPS.
https://connect.garmin.com/modern/activity/838680398
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J.R.
Well-Known Member
- Region
- USA
- City
- Piedmont Highlands
I don't believe you will come close to 50 mi. with a 12.8 ah battery on a bike without gears. Pushing very hard with my 16 ah battery I get that 40-50mi.
At 13-15 mph, you wouldn't have a problem hitting 20 miles. Up that speed to 18-20 mph maybe 15 miles, right in keeping with Court's test of the Sandpiper.
vincent713
Active Member
I just edit my previous post in case you guys missed it.
Llcjay
Member
.? With TWO batteries, will easily get 40 to 50 miles. I get 35 with 36v11ah
J.R.
Well-Known Member
- Region
- USA
- City
- Piedmont Highlands
Sorry I missed the TWO, got excited hearing about an inexpensive big battery
scmike
Active Member
Watts=power Let's see a 15w motor push a Sondors + rider 14mph The guy must have pedaled ... I thought there was video... even then easy to fake...
vincent713
Active Member
scmike - obviously you don't like the Sondors bike, which bike do you sponsor?
PowerMe
Well-Known Member
I think there must be some confusion going on. Watt hours ≠ total watts of a motor.
Total Watts available from battery / Watt hours = expected range
So using my ebike as an example:
417.6 total watts of power from battery (36v x 11.6ah) / 15 watts per hour = about 28 mi range. I know from experience I can get about 30 to 33mi from one charge, depending. I turn off PAS during downhill segments, so that's what probably accounts for the extra 2 or 3 miles of range.
I figured out from my typical ranges over many rides that I'm using about 15 watt hours per mi. That number would obviously be more accurate if I had a watt meter on my ebike, but I don't, so estimation is all I can do right now.
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vincent713
Active Member
PowerMe - so given all of the data from my post regarding the Sondors no pedal range test, do you think it's accurate, achievable and true?
PowerMe
Well-Known Member
I don't know, and what I believe doesn't matter, it comes down to proving it. If he absolutely was not pedaling at all that's damn impressive!
I've never not pedaled at all on my ebike, but I'd be surprised if I could get 21 miles range on just throttle only. Maybe if my terrain was absolutely flat and I was going slow.
scmike
Active Member
Vincent,
I almost pulled the trigger on 2 Storms, as they were called early, but after a few days, and research I decided someone/something wasn't right...
I eventually went with the RadRover, and only after their team personally responded to my ?'s I hope to pick up the RRs... I bought 2 in the next 2 weeks .... The RR comes with a watt meter built in and I'll have 2 to compare and test.... I also have enough electrical testing equipment to do some fun real time tests... I just have to make the time...
PowerMe
Well-Known Member
I followed along on the playback of his course as posted. He was riding 2 mi out, then 2 mi back, for an approimate 4 mi loop. He did that a little over 5 times to get to the 21.80 miles. Yeah, I believe it. He wasn't doing any big hills or anything. On any downhill, even a minor one, he wouldn't have needed very much, if any, throttle usage. Seems legit.
scmike
Active Member
Where is this video? Is this Craig's video?
PowerMe
Well-Known Member
vincent713
Active Member
scmike - the RR is a nice bike, so you already have it or going to pick it up? I was under the impression that they had already shipped that bike. That thread seems very slow and dead.
Licjay - yes that was the guy I got all the information from on FB. He seems like a genuine guy and even offered to do another test if someone wants to be there to witness.
Licjay - yes that was the guy I got all the information from on FB. He seems like a genuine guy and even offered to do another test if someone wants to be there to witness.
George S.
Well-Known Member
Here's the math:
15 w/h per mile
15 miles per hour
In an hour multiply the two and get 225 watts. So if you run 225 watts for an hour and go 15 miles it's 15 w/h per mile. But the constant watt burn is 225 watts. It's the 225/15 miles (15 miles per hour, in an hour)
If the battery is 360 w/h, you should get 360/225 * 15 miles, full to flat battery. Low 20's.
15 w/h per mile
15 miles per hour
In an hour multiply the two and get 225 watts. So if you run 225 watts for an hour and go 15 miles it's 15 w/h per mile. But the constant watt burn is 225 watts. It's the 225/15 miles (15 miles per hour, in an hour)
If the battery is 360 w/h, you should get 360/225 * 15 miles, full to flat battery. Low 20's.
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