Recent content by ElectricBeam

Ok, so after running off angry thinking this whole thing was a waste of time, I spent some time considering the situation. I have an idea to cool the motor using forced air from a high rpm brushless centrifugal fan...

Well thanks for the info, but I don't know if it is worth continuing this project anymore. The whole idea and path to improvement were based on that misconception, and I feel like I am back at square one yet again. Cooling the motor in my case would require drilling holes and mounting a blower...

Thank you again. I will look around for more info on BMS suppliers. Thanks for all the information regarding efficiency. I actually considered that the motor may have been out of phase, but the current draw seemed reasonable for the speed I was getting. The motor is also only 85% efficient at...

Thanks for all the information. You got it, it is brushless. Since I don't plan to let the motor reach insane speeds, I am hoping it will not self-destruct. I am really only aiming to increase the efficiency of the system while maintaining a high power level. Of course, that is not to say I...

I have been riding electric scooters for years now, mainly models from supercycles and scooters running stock 48volt Li-ion systems and cheap controllers. I have become dissatisfied with the engineering and general performance/reliability of these scooters, and have embarked on my first serious...

I think that is exactly what is going on, and the only way to keep the power level at the thrilling amount it is at now is to replace the battery, which I am willing to do. Yeah, the motor runs a little hot, but you are absolutely right about not being able to go back once you have experienced...

Yes, to recap, it appears as though the current problem stopping the scooter from working as intended is a battery who's BMS is cutting out due to overload. The battery does sag to 46 volts before cutting out, achieved by pulling the break well the scooter is up off the ground and at full power...

Ok, Ill note down everything that might be helpful in this post. 1) A loud metalic hum/vibration when starting acceleration from 0. Think mix between amplified chain noise and creaking. Always assumed it was just the startup of the very powerful motor. This has happeded since day 1 2)The first...

Was going to test the temperature the motor got to but dumped that idea once I realized the heat damage on the positive terminal had gotten worse. I should have mentioned this earlier, but basically ever since I got the scooter the positive battery terminal on the controller has been heating up...

I don't see why I shouldn't open up the controller and have a look tommorow. About the controller. It is a BAC-0501 from golden motor, Specs claim it can take 50 amps continuously, and 100 amps max. It can be seen at this link https://www.goldenmotor.com/frame-controllers.htm under the...

All that is good and well, the problem is that the company claims the controller is set at 30 amps continuous, 60 peak. I have however seen a video on youtube clearly showing the parameters set to what I am reading. Seems like something fishy is going on. What I want know is how on earth the low...

I have tested the current and observed a maximum draw of 117 amps during fast acceleration. The company says the controller should be programmed for 60 amps max. Since the controller runs hot, I am wondering if the controller is actually broken and drawing a phantom current, probably due to...

as soon as i have concrete numbers, I will post again. Have to wait 2 days for shipping. For those who are asking, here is a link to a very similar OSN battery. The battery I have is much like this, but with an extra row and a quarter on one side to make 20ah...

I have a few updates, one of which was me being a complete idiot. I have another scooter of a different, lower power scooter from the same company which also has a 48 volt lifepo4 battery. Knowing full well that the battery could not handle the full load, I connected it up just to see what I...

Spoke with the company today, who claims they have been sending out these batteries, and not been having issues. They wan't me to buy a cable so I can check the settings of the controller. Thinking I should just use a watt meter instead as I have store credit with Lunacycle. Should tell me what...