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Not Covid because it's not a natuaral virus. Nobody knows how it will turn out. Some are predicting disaster.

Also, if the charger has the normal kettle lead from the mains, don't use that type on the battery, otherwise it's only a matter of time before you plug the mains directly into the battery. Even I've done that!

There are no disadvantages of running at 48v, only advantages, so if there's a choice, only a fool would choose 36v, unless you were using the lower voltage to get the correct speed. The only imprtant things are that you choose a motor that can handle the power you need for the speed and...

Jesus died and went to heaven. Aliens are alive and kicking right now all over the universe. There might be an alien right now sitting in your kitchen. How would you know?

I keep the virus away by eating those big triple chocolate cookies that you get from Morrisons and other supermarkets. 4 in a packet and 2 packets for £2 at the moment. Since I've been eating them, I haven't had the virus once. Mind you, my stomach was making weird grumbling noises after eating...

You can't guess. If you connect the wrong wires, you can do a ot of damage. Only a meter will show you which wire is switching when you switch on the LCD.

I count 8 wires, not 4, and that doesn't include the purple! The 8 wires are: Battery Switched battery Tx Rx Ground Throttle 5v Throttle sig Brake sig 9th wire is probably lights. Why didn't you spread the wires out so that we can see the colours? Purple is usually the throttle 5v, so did your...

If you had 5v between black and red, the halls should switch when you turn the wheel. If they stay on 0v or 5v, they're dead.

You need to get the bigger picture. This research was going on the US, then the world leaders decided to disallow it because of the risks. USA, like everybody else carried on doing it on the QT but got found out, so they had to stop. IIRC, it was stopped by Trump at the beginning of his...

There's your problem. In order for the controller to get power, that purple wire needs to be connected to the orange one, which is what the LCD does. The battery in the LCD has nothing to do with the ebike control system. It's just for the memory in the LCD.

It's a good sign, but not conclusive. You must check the output wires/connector with a meter.

That means that the phases are good if you connected them together, but If the motor goes stiff when you connect them to the controller, it means at least one mosfet in the controller is blown.

You're missing a wire. You can't work an ebike LCD with 4 wires. You need: Battery voltage to power the LCD (normally red or orange) Switched (by LCD) battery voltage to power the controller (normally blue, pink or orange) Transmit data (green or white) Receive data (white or green) Ground...

OK, with that mileage, more likely a magnet come loose, but could be anything that got dislodged. The only way to know for sure is to look inside and solve the mystery.

The fact that the noise has changed points to a magnet come loose and is rubbing on the rotor, or you somehow got a piece of debris stuck between the rotor and stator. I'm thinking more likely the latter. When they assemble the motors, it's possible to chip a magnet. I wouldn't do anything just...

They're on a different circuit, so it makes no difference whether phase wires are connectecd or not.

She doesn't need all that, Neal. She only weighs 45 kg. Any bike will have enough power and range. The only really important characteristic is the size. There are a few bikes specially for small people that have 24" wheels instead of the normal 26" ones. Juicy do this one, which has all the...

Try looking in the miror to see if you have a long face.

There is plenty of evidence. The problem is that the political and financial agendas get in the way. As soon as a legitimate test/trial/data collection shows anything that conflicts with their agendas, they pay someone to write a pseudo-science report to show the opposite. I've already told you...

I'd rather trust my little birdie. It's never been wrong yet.