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Brushless DC Motor Speed Controller 36-48V 800W Electric Bicycle E-Bike

★Application:

The battery type can be Lithium battery, Lead Acid battery….
It can be suitable to three - wire throttle brushless DC Hub Motor under 800W

Waveform:Square wave

★Installation precautions for the electric vehicle square-wave controller:

1. Installation Requirements: The work must be performed by personnel with valid qualifications for electric vehicle maintenance and electrical installation. Unqualified individuals, minors, or those lacking experience are strictly prohibited from participating.
2. Parameter Matching: Before installation, verify that the controller's rated voltage/current matches the battery and motor parameters. Do not use incompatible equipment to prevent damage or fire.
3. Power-off Discharge: Cut off the main power supply, close the circuit breaker lock, and wait for 3–5 minutes for residual charge to discharge to prevent electric shock or short circuit.
4. Abnormality Handling: In case of abnormalities such as unusual odor, smoking, or overheating, immediately cut off the power supply and cease operation. Contact professional personnel for maintenance; do not continue using the device.
5. Liability Statement: Any losses or accidents resulting from improper installation (e.g., voltage mismatch, incorrect wiring, inadequate fixation, or insufficient waterproofing) shall be borne solely by the installer or user. The manufacturer and distributor shall not be held liable.

★Select the motor speed controller:

First look at your e-bike battery voltage levels, corresponding to the selected voltage controller, look at the size of the current controller previously used, such as the 16A-18A 350W controller, 22A-24A controller is 450W, 28A -30A controller is 500W, 31A-33A is 600W controller, 33A-35A is 800W controller, 36A-38A is the 1000W controller, 40A-43A is the 1200W controller, 50A is about 2000W controller. If the original e-bike is 350W we recommend upgrading to a faster wattage, so you can take advantage of the best motor speed and power.

Note: this controller only supports three - wire brushless motors and three - wire throttle, not six - wire throttle. Regenerative braking is not supported.

★Package list:

1 x 36-48V 800W Electric Bicycle E-bike Scooter Brushless DC Motor Speed Controller

Item Specifics
Country of Origin	United States
Brand	backye
MPN	BCK19756K
Type	speed control
Voltage	36-48V
Warranty	1 year

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