Motorola RDU4100 Review

The Motorola RDU4100 is Motorola’s most powerful handheld two way radio in the business tier. The RDU4100 is one of the most popular models that Motorola makes because it is Motorola’s most durable and powerful handheld radio. On top of that it also has the best speaker quality, making it ideal for loud and rugged environments. One of the best features of the RDU4100 is its battery life – boasts an extremely long lasting battery at 18.5 hours per charge! Motorola jam packed this model with every basic feature a business could want and it has consistently been one of Motorola’s best sellers since its release.

Dimensions: 4.5″ x 2.2″ x 1.8″ (HxWxD)

Radio Weight w/ Battery: 10.3 oz.
The RDU4100 is a 4-watt radio, covering around 350,000 sq. ft., or around 2 to 5 miles depending on your surroundings.

The RDU4100 is a 16-channel UHF two way radio that can be programmed to work with other UHF radios. Programming Cables are available for this model, so you can change your programming at your own convenience if the need should ever arise.

The Motorola RDU4100 comes with a belt clip, lithium ion rechargeable battery pack, single unit charger, and a 1-year Motorola warranty.

You can purchase RDU4100 radios at

Have questions? We would love to hear from you: 888-560-0758

About All Charged Up

All Charged Up is a leader in radio communications and transportation solutions for businesses across the United States and takes pride in providing the best service and products at the lowest prices in the industry. All Charged Up provides Motorola and Vertex Standard two way radios and accessories, as well as ratchet tie down straps and tie down accessories, made with webbing manufactured in America. All Charged Up is made up of two branches: and

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