So I have a 500W 48V brushless hub motor I bought from aliexpress. It's been working OKish for a couple of winters now, but it has always been a bit noisy and the range has been much shorter than that of my summer bike. At first I thought it was because of a weak battery, but after switching to a bigger, triangle-pack that has been very reliable powering my summer bike for years it still exibits the sambe behaviour. Stopping, mostly when going uphill only after a couple of kilometres.
The is no noise when the wheel is spinning with no load, and when there is, it sounds like I'm making it myself pretending to be a moped. A little embarrasing, considering the pathetic performance.
I've tried 3 different controllers, both self study and manual, so I think it must be the motor. And the connections must be right as I have smooth movement without noise when wheel spins without load.
1) Could this be caused by a half busted hall sensor?
2) Also, this seems to be getting worse. Today I went for a short ride with a fully charged battery and the bike stopped on my way home. Measuring the battery the voltmeter said 29V and it took quite some time before it would charge. Could the motor kill my battery?
The is no noise when the wheel is spinning with no load, and when there is, it sounds like I'm making it myself pretending to be a moped. A little embarrasing, considering the pathetic performance.
I've tried 3 different controllers, both self study and manual, so I think it must be the motor. And the connections must be right as I have smooth movement without noise when wheel spins without load.
1) Could this be caused by a half busted hall sensor?
2) Also, this seems to be getting worse. Today I went for a short ride with a fully charged battery and the bike stopped on my way home. Measuring the battery the voltmeter said 29V and it took quite some time before it would charge. Could the motor kill my battery?