Recent content by anddan

Hi, Most controllers have three phase wires to connect and three hall effect wires plus voltage and signal ground, they need to be attached to the motor, the controller will also have two wires, usually black and red that connect to the battery, you will also need a throttle that is three wires...

Hey David It sounds like you would like to be able to control the motor with a throttle without pedalling, most controllers will have a connection for the PAS sensor and a throttle, the throttle will allow you to control the bike without having to pedal, most controllers with PAS capability...

Hi, the higher amperage controller could damage the motor connections or mosfets (which you mentioned), it could also cause the motor windings to overheat, Power that you input into the motor is battery current (controller current rating) times the voltage. A percentage of that is converted...

Hi there Marcuz, A 48 V battery starts its discharge at about 54Volts and goes down to about 41 42 volts. At least that is the industry standard and a 48 Volt controller should work fine on a battery that reads 52 Volts fully charged with a voltmeter. Andrew

Hi there, this thread is confusing, but also the right place to start, I am planning on buying a BAC 800 controller, I need to program it, i.e. tune it and also preferably program it for a sensorless start, since my bike hall sensors are dead. I don't even know where to start. Is there an...

Hi there, I have a question about 5V shorts. Say I have a motor controller, it has a throttle a pedal assist sensor, and LCD and hall sensors. All of these sensors/systems have a 5V lead wire, a gnd wire and 1 to three signal wires. If the 5v shorts to the signal wire, obviously the signal is...

So i am an ebike tech at pedego in nanaimo bc im working on a bike that previously had capacitors fail in the motor controller. Im not that familiar with motor controllers but am wondering if their are any known symptoms like shorted phase wires or stalled motors that cause capicitors to fail...

If you take the same motor and wind it with twice the number of turns of copper, then k will double, so the motor will require twice the voltage to reach the same speed, but it will only need 1/2 the current to output a particular torque. Notice that the power input (V*I) for a given torque and...

Hi there, 70kph is very fast for an ebike, even if you insist on high speeds you'll need fat tires for better traction. As far as the motor and controller for standard conversion kits available from grin, you could do what you are asking for with the crown series...

Hi there. I am just interested to know the difference between the CDR and C rating. Am i correct to assume that the C rating is the maximum discharge and the CDR is the continuous discharge capacity. Andrew

Hi there. I am just interested to know the difference between the CDR and C rating. Am i correct to assume that the C rating is the maximum discharge and the CDR is the continuous discharge capacity. Andrew

Sorry, why do you need to build one? Can't you just order one from here https://ebikes.ca/ttl-usb-satiator.html A.

Keep in mind that depending on how much current your charger can supply it may not be any faster than charging one after the other. The amount of current drawn by the battery is given by the voltage divided by the resistance of the battery. Like one of the other posters mentioned, connecting...

Did you mean 2.5 kw, 25000 watts is way above the 3000W rating of the QS205, you could possibly run 2.5 kw on the QS205 with a temperature sensor and a display (cycleanalyst) to monitor the heat. Andrew

The low speed torque is a function of the motor controller amperage, with the same current but less turns you will have lower torque. To get the same current though you will need a higher voltage for the higher turn motor, since it has more resistance, so the increased torque isn't for free...