999zip999
100 TW
Wow sounds like they are available. Be nice to see the performance between the two as far as heat.
Thanks for the update. Hoping for a heat wave for you!e4bike.ru said:Rain is expected this weekend but next week should be good. The new controller and this motor are waiting for tests.
If you are running on a 26" tire, then about 45 mph unloaded.999zip999 said:So what does 7.1875kw mean to me ? At 80v 50amp. ?
7.1875x80=575rpm unloaded speed999zip999 said:So what does 7.1875kw mean to me ? At 80v 50amp. ?
teslanv said:USA Group Buy Motors landed on my doorstep this afternoon.
Got a couple boxes opened up and Kv Tests complete. Here are the results:
All tests performed at 48.0 Volts (Mean Well Power Supply), Unloaded on the bench, Lyen (Infineon EB3 Board) 18X4110 Controller
4-Turn = 432 RPM = 9.0Kv
5-Turn = 345 RPM = 7.1875 Kv
6-Turn = 289 RPM = 6.021 Kv
zombiess said:teslanv said:USA Group Buy Motors landed on my doorstep this afternoon.
Got a couple boxes opened up and Kv Tests complete. Here are the results:
All tests performed at 48.0 Volts (Mean Well Power Supply), Unloaded on the bench, Lyen (Infineon EB3 Board) 18X4110 Controller
4-Turn = 432 RPM = 9.0Kv
5-Turn = 345 RPM = 7.1875 Kv
6-Turn = 289 RPM = 6.021 Kv
Can you post up the unloaded currents for 48V for the different turn counts?
Good job doing the Group buy. Putting one together and then pulling it off is not easy, it's a lot of work with heavy stuff too.
Did you take duty fees into account for the GB? If not they will get you for ~$10/motor in duty fees. I hope the quality on these is better than I got with my CNEbikes 40mm motor. I paid quite a bit more for it than this motor and it's abysmal in QC.
mrdavies said:Hey guys curious what you think of using the Grin C7240-NC controller with this Motor? it puts out 40 amps... Do you feel the 20s lipo would be a good fit? or should I head in the direction of a bit more amps? (or volts)
Any input on a good controller for the 3000 would be helpful. I have a V-2 on order.
thanks
teslanv said:The 4-turn pulls about 58W at 48V no load.
I have not seen an invoice for duties from UPS. Do they usually send a bill after delivery?
e4bike.ru said:I used new sine wave controller with 40A battery current. The power was 3400W in the beginning and 2600W in the end. Outside temperature was +5 Celsius. The motor had +25C in the beginning and the maximum temperature I got in the end was +110C. I thought that I will overheat it much faster. Some screens from the CA behind the spoiler. CA shows about 5% higher current. 89kmh on the CA is no load test with 84V.
madin88 said:but i just wanted to mention it because many here do think if a motor is rated to 3kw, it is 3kw from the battery which is not true. its 3kw at rated phase voltage.
Valentin,e4bike.ru said:Wow! Hope you will monitor the motor temperature.