Most solar power banks I've tested were gimmicks - this one is the real deal

2026-03-02 · Source: News and Advice on the World's Latest Innovations | ZDNET · Field: Technology & Digital — Emerging Technologies & Innovation · Depth: Novice, medium

Summary

The ToughTested ROC 16 is a rugged, 16,000 mAh power bank currently on sale for $85, featuring three charging ports, 15-watt wireless charging, and an integrated solar panel. This device, part of the ROC series, is IP67-rated for dust and water resistance, measuring 7.75 x 5.5 x 2.6 inches and weighing 1.1 pounds. It includes two USB-A ports (one QC 3.0 compatible), an 18W max USB-C port, and a microUSB port for charging. The 280mA solar panel can theoretically fully charge the power bank in 57 hours of direct sunlight, serving primarily as an emergency power source rather than a primary charging method. The device also incorporates a multi-mode LED flashlight and can charge an iPhone 17 Pro Max two to three times.

Key takeaway

For outdoor enthusiasts or emergency preparedness planners, the ToughTested ROC16 offers a reliable, rugged power solution with a crucial solar backup. While not a primary charging method, its solar panel provides critical emergency power, making it a valuable addition to your off-grid or survival kit. Remember to prioritize wired charging for efficiency and protect the device from direct sun exposure to prevent battery damage.

Key insights

Integrated solar panels on power banks offer valuable emergency power, despite limited charging speed.

Principles

• Solar panels on power banks are for emergency use.
• Wireless charging is less efficient than wired charging.
• Overheating damages power bank batteries.

In practice

• Use solar panels for emergency phone top-ups.
• Charge power banks via cable for efficiency.
• Keep solar power banks in airflow to prevent overheating.

Topics

• Power Banks
• Solar Power Technology
• Portable Chargers
• Rugged Devices
• Wireless Charging

Best for: General Interest, Tech Journalist

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Editorial summary, takeaway, and curation by AIssential. Original article published by News and Advice on the World's Latest Innovations | ZDNET.