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Stillwell Regen Axle

5:37
27:07
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At 5:37 in

The Wildest Trailer Technology in Decades

What happens here

Drew from Stillwell introduces 'The Regen,' a revolutionary product designed to convert standard 7K axles on dump or utility trailers into regenerative charging systems. This system charges the trailer's battery while driving. Traveling over 20 mph, the Regen continuously charges the battery at 12 amps. He explains that this allows a dump trailer's battery to fully recharge in just 20 minutes (or 10 minutes with two axles equipped), eliminating battery drain during extended use, such as snow removal. The system effectively turns a dump trailer into a 'dump truck' by ensuring continuous power for hydraulic functions. The core mechanism involves magnets on the drum that rotate around a coil, acting as a generator. The product also features a new metal dust cap with external threads and an internal baffle to prevent damage and loss, a common issue for landscapers.

Goal: Understand the regenerative braking system for charging trailer batteries while driving.

Tools and materials

  • New Dust Cap — Protecting axle components and indicating pressure changes
  • Stillwell Regen Axle Stillwell — Converting a standard axle into a regenerative charging system
  • Trailer Axle — Base component for conversion