CASE STUDIES

USB Charger

Multi-Device Charging for 12VDC Mobile Environments

Challenge

As part of a broader product line refresh, the customer needed a dual-port USB charger that fit within a cohesive family aesthetic and delivered reliable, high-speed charging for mobile users. The unit also had to power a legacy 12V “cigarette port” accessory alongside two USB ports, all from a single 12VDC input — and do so safely, efficiently, and attractively.

Solution

Steiner Enterprises engineered a compact, weather-tolerant charger that features two 2.1A USB ports with fast-charging capabilities, plus a 1A auxiliary port. The enclosure was designed to match the visual styling of the updated product family, while the internal electronics were optimized for balanced power delivery across all outputs. For added convenience and user experience, an elastic band was integrated into the design, allowing mobile devices to hang securely while charging.

Design & Engineering Highlights

Powers two devices via fast-charging USB plus one 12V accessory port

Matches product family styling for consistent branding

Silicone molding and sealing hardware allows use in demanding environments

Integrated elastic strap offers a user-friendly phone storage option

  • Electrical design and layout
  • Injection-molded plastic housing
  • Retail packaging development

Produced in ISO 9002-certified facilities

Outcome

The USB Charger became a key companion product within the customer’s mobile accessory lineup. Its rugged build, functional elegance, and easy usability made it ideal for RVs, boats, utility vehicles, and more — wherever 12V power and smart charging were needed.

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