Chamberlain B4643T Review – Control, Monitor and Secure your Garage From Anywhere With Your Smart Phone!

If you’re looking for a reliable, feature-rich garage door opener that won’t break the bank, then look no further than the Chamberlain B4643T. With its intuitive design and robust construction materials, this is one of the leading garage door openers on the market today. Easy to install and operate from anywhere in your home or yard, it boasts durable steel bearings for whisper-quiet operation and comes with all the bells and whistles imaginable; safety sensors that detect obstacles when closing, timer-to-close option which will keep your family safe even if you forget to close it manually. And best of all, you can control your B4643T through Alexa enabled devices! Read on this Chamberlain B4643T review what makes this remarkable device such an awesome choice for homeowners everywhere.

Chamberlain B4643T Garage Door Opener Review

1. Design

The Chamberlain B4643T is an excellent choice if you are looking for a high-quality garage door opener. Its sleek design creates a modern look that meshes well with any home. Its steel construction ensures durability and longevity. This model also features three different button controls, so you can easily operate it from anywhere in your home or yard. Additionally, the included LCD display provides easy readouts of all settings and features.

2. Motor Power

This Ultra quiet garage door opener model is equipped with a 1/2 HP motor that is designed to provide smooth and powerful operation for years to come. With its steel bearings, you can be sure of quiet performance and efficient operation and protection against wear and tear. You can also choose from three speeds: fast, medium and slow—ensuring optimal convenience no matter what kind of job you’re doing.

3. Sensor Technology

To ensure maximum safety when handling your garage door opener, the Chamberlain B4643T smart garage door opener includes sensors that detect obstacles when closing. These obstacle sensors stop the opening or closing action of the door when an obstruction is detected, helping to prevent accidental injury or property damage. You can also use the timer-to-close feature to make sure that even if you forget to manually close the door, it will do so automatically after a preset amount of time has passed.

4. Safety and Security

The Chamberlain B4643T is one of the safest garage door openers on the market today thanks to its solid construction materials and numerous safety features including a dual-sensor system that detects objects in order to halt movement quickly and effectively if an obstruction is found. Additionally, this opener comes with an auto-reverse feature which stops any downward movement if resistance is detected at the bottom end of travel — providing extra security against accidental injury or property damage due to misclosing doors.

5. Warranty & Delivery

In terms of warranty coverage, this model comes with a 5 year limited warranty on parts as well as lifetime technical support via phone or email from their highly trained customer service team. Delivery service includes free shipping within mainland U.S., ensuring speedy arrival at your doorstep without issue!


B4643T Chamberlain Garage Door Control Specifications

model number ‎B4643T
Weight30.4 pounds
Dimensions‎27.25 x 13.13 x 9.94 inches
Style‎Door Opener B4643T
Mounting TypeDoor Mount
Maximum Door SizeUp to 10 feet high and 500 pounds
Remote Control3-button remote control, 1-button visor remote
Warranty Description‎Accessories: 1 Years, Belt: Lifetime, Parts: 5 Years, Motor: Lifetime


Q. Is this Chamberlain garage door opener easy to install?

For those who are unfamiliar with electrical wiring or garage door opener installation, the installation process may be difficult. For installation, it is best to hire a professional.

Q. Is the Chamberlain B4643T opener compatible with smart home systems?

Yes, MyQ technology and accessories are compatible with the Chamberlain B4643T.

Q. What is the maximum weight and height of garage doors that can be used with this Chamberlain garage door opener?

The Chamberlain B4643T can handle garage doors up to 10 feet tall and 500 pounds.

Q. What is the noise level of the Chamberlain B4643T opener?

While the chain drive mechanism is durable, it may produce more noise than other drive mechanisms, such as the belt drive.


The Chamberlain B4643T is a great option for those looking for a reliable garage door opener. It has an easy installation process, quiet motor, as well as reliable and consistent performance. With its one-click LED lighting and vacation mode setting, the Chamberlain B4643T is loaded with convenient features that ensure your home stays protected even when you’re not around. Its five-year warranty adds extra assurance of the product’s reliability and durability.

Chamberlain B4643T Review image

All in all, the Chamberlain B4643T is the ideal choice for anyone wanting to purchase a dependable and long lasting garage door opener. So make sure to consider it if you are currently in search of one. Conclude now and take advantage of its many important features!


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