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You must have somehow connected the battery voltage to the 5V rail to blow the sensors like that. Unfortunately, the 5V is common to the controller's CPU, the throttle and the pedal sensor, so there's a fair chance that you've blown everything connected except the motor windings. You can...

A motor is a two-way transducer. If you apply a voltage to it, it will turn. If it turns, it'll produce a voltage. The KV is the ratio between the voltage and turning speed whichever way round you want to work it or define it. Look at it like this. You have a motor with a KV of 7. You apply 1v...

I have a potential solution. This might work as long as there is no direct short of the signal wire. Take a resistor somewhere in the range 5k to 10k and poke one end into the connector's the 5v pin and the other in the signal wire's one. Do it to each connector in turn to see if the brake...

I'm not sure what your point is or what your question is. Ask it again from first principles. I think you've got completely mixed up. Back emf has no effect at zero speed, small effect at low speed and big effect at high speed. It's the thing that limits every electric motor to a maximum speed...

There are brake switches like yours that are mechanical and require two wires, and there are ones that work electronically, which need a 5v supply direct from the 5v regulator. Both of them short the signal to ground to cut the motor power. The three wires are: Red - direct 5v Black - common...

I'd cut off the connectors and join the wires directly.

When you pull the brake, it closes the switch, so the symbol comes on and the power goes off. Let me explain it again. There is an input to the micro-prosessor. It can be 0v (low) or 5v (high. That's all the MP looks for and bases its decisions on. That input is connected directly to the same...

It's a typical characteristic of many electric bikes. Why would you want a Badass dongle on a Wisper when you can derestrict it for nothing? Dongles of any type have no effect on current or power. They only interfere with the speed signal to fool the controller into releasing the speed limit.

You can bypass the control panel to confirm whether the problem is in the panel (quite likely) or somewhere else. Follow the cable all the way to the motor controller to find the connector. Typically, there are 4 wires in the cable to the meter. Colours are normally red, black, blue and green...

The controller limits the current to a fixed amount - typically 15 amps. When a motor is stationary, it has low resistance, so without the controller limiting the current, it would draw enough current to burn, which is why the controller limits the current. As soon as the motor starts to turn...

The yellow wire should be 5V, but it gets that through a pull-up resistor, so if you draw any current, the voltage will collapse. Try a different meter with a higher impedence.

It also found him not guilty under the eyes of the law, and no doubt in the future, it'll find him not guilty again. Anyway, as I said, that's not the point. Should the police waste £2 million on a crime where nobody was hurt and nobody suffered any loss or consequence? If you're so concerned...

I've been working on electric bikes for very many years. I know how they work. I'm trying to help you. If you have the answers tell me how it works out.

Guilty without a trial and without a jury, then acquitted, then retried, still no jury. Read the transcript and see if you agree with anything the judge said. They made it up as they went along. No jury would have found him guilty. Even if he was guilty, is it worth spending at least 2 million...

I think you misunderstand. No police were needed for Tommy Robinson's arrest for using his phone, but literally hundreds were needed for each of his seven court appearances for the same "offence", and now at the protests that his followers are holding every week in protest to his unfair...

You need higher gearing when you convert a bike to electric. Your gearing with the 46T ring will be fine.

15% difference in power (torque) and battery consumption. .

Some BMSs have leaky MOSFETs. When switched off, charge can leak through the MOSFETs so you can measure voltage on the terminals. Around 18V on a 36V battery is common, but can go as high as 40V. It's a voltage that can be measured with a voltmeter, but you can't do anything with it. If you try...

It's not that at all. Did you see how many police were at Tommy Robinson's trial for live streaming on his mobile phone. Count Dankula was arrested and fined for making a joke on YouTube and a woman was arrested and spent all day in jail for telling a bloke that he was a bloke because he had a...

I blame the dealer. The dealer should be able to diagnose a simple battery fault, then order a new battery from Wisper, which should take less than a week. Unfortunately most dealers haven't a clue or can't be bothered.