# Hand Crank Cell Phone Chargers Must-Haves in Earthquake Prone Areas By Juan Rodriguez Villa | Published 2007-04-02 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/cell-phone-security-hand-crank-cell-phone-charger References: [trend-observer.blogspot](http://trend-observer.blogspot.com/2007/04/hand-crank-for-cell-phones-lets-you.html) Imagine that you are in the middle of the mountains, and your cell phone battery runs out. You have nothing to plug and charge your batteries, and you need yo make a very urgent phone call… With the [hand crank cell phone charger](https://www.trendhunter.com/trends/wnd-helmet), you will generate 2-8 minutes of battery life for your cell phone, so you will be able to make that [emergency phone call](https://www.trendhunter.com/trends/emergency-preparedness-bundle). This extremely useful gadget has been released in Japan, a country plagued with earthquakes and other emergency situations like tsunamis, storms and floods.. In my opinion, every camper or [outdoor activities lover](https://www.trendhunter.com/trends/carabiner-battery) should get one of these vital gadgets, just in case. ## Trend Insights (Trend Hunter) - Score: 6.2/10 - Popularity: 87% | Activity: 92% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Tech](https://www.trendhunter.com/tech) > [Gadgets](https://www.trendhunter.com/gadgets) ## Key Themes ### Key Themes Behind This Trend - **Hand Crank Phone Chargers:** Opportunity for disruptive innovation in portable power solutions for emergency situations. - **Emergency Preparedness Gadgets:** Potential for disruptive innovation in creating compact, multi-functional devices for outdoor activities and emergencies. - **Sustainable Energy Generation:** Potential for disruptive innovation in renewable energy solutions for powering portable electronic devices in off-grid situations. ### Where This Applies - **Consumer Electronics:** Opportunity for disruptive innovation in the development of compact, efficient, and eco-friendly charging solutions for electronic devices. - **Outdoor Recreation:** Opportunity for disruptive innovation in creating durable, lightweight, and functional gadgets for outdoor enthusiasts. - **Emergency Management:** Opportunity for disruptive innovation in providing essential tools and technologies for emergency preparedness and response. ## Related on Trend Hunter - [Kinetic-Friendly Power Banks](https://www.trendhunter.com/trends/last-resort-power-bank.md) - [Camping-Ready Portable Batteries](https://www.trendhunter.com/trends/mobile-universe.md) - [Disaster-Preparation Sleek Clocks](https://www.trendhunter.com/trends/4rq002003.md) - [Device-Charging Sun Hats](https://www.trendhunter.com/trends/ecoflow-power-hat.md) - [Rapid Phone Charging Solutions](https://www.trendhunter.com/trends/swapperys-external-smartphone-battery.md) - [Warming Power Bank Keychains](https://www.trendhunter.com/trends/wb-battery-powered-hand-warmer.md) - [Compact Portable Power Stations](https://www.trendhunter.com/trends/portable-power-station1.md) - [Pocket Timer Power Banks](https://www.trendhunter.com/trends/shargeek-capsule-gravity.md) - [Portable Energy Generators](https://www.trendhunter.com/trends/portable-energy-generator.md)