# Hand-Cranked Batteries Qian Jiang Designs Self-Recharging Wind-Up Batteries By Michael Hines | Published 2011-04-17 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/qian-jiang References: [dornob](http://dornob.com/crank-case-rechargeable-wind-up-emergency-batteries/) Qian Jiang is attempting to make recharging batteries faster and more efficient with his [rechargeable wind-up batteries](https://www.trendhunter.com/trends/wnd-helmet). Jiang's design features a built-in hand crank that recharges the batteries via kinetic energy. The batteries can be recharged to 45 percent power in 5 minutes and 100 percent power in 20. The great thing about these batteries is that they are also compatible with [conventional battery chargers](https://www.trendhunter.com/trends/charger-2) in case your hands start to get tired. Battery chargers are constantly being redesigned to be faster and more efficient, but maybe it is time we start redesigning our batteries instead. Designs like Qian Jiang's just make sense, as they nearly eliminate the need for [electricity-consuming wall chargers](https://www.trendhunter.com/trends/al-charger). Hopefully a big-time battery company will take notice of this design and take it from concept to reality. ## Trend Insights (Trend Hunter) - Score: 1.7/10 - Popularity: 14% | Activity: 29% | Freshness: 8% - Audience gender: 70% men, 30% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What's Driving This Trend - **Rechargeable Batteries:** Designing rechargeable batteries with built-in hand cranks for faster and more efficient recharging. - **Kinetic Energy:** Exploring the use of kinetic energy to power battery recharging. - **Alternative Charging Methods:** Investigating alternative methods of charging batteries to reduce reliance on electricity-consuming wall chargers. ### Who This Affects Most - **Battery Technology:** Opportunity for battery companies to incorporate hand-crank designs into their product offerings for faster recharging options. - **Renewable Energy:** Applying the concept of using kinetic energy to recharge batteries to other renewable energy sources for efficient power generation. - **Consumer Electronics:** Integrating hand-cranked battery technology into consumer electronic devices to provide convenient and sustainable recharging solutions. ## Related on Trend Hunter - [Kinetic-Friendly Power Banks](https://www.trendhunter.com/trends/last-resort-power-bank.md) - [Crank-Powered Wireless Peripherals](https://www.trendhunter.com/trends/mechanical-energy-harvesting-combo.md) - [Sustainable Rechargeable Batteries](https://www.trendhunter.com/trends/paleblue-usbc-cells.md) - [Rapid Phone Charging Solutions](https://www.trendhunter.com/trends/swapperys-external-smartphone-battery.md) - [Heatwave-Resistant Alkaline Batteries](https://www.trendhunter.com/trends/urban-electric-power.md) - [Crustacean-Based Batteries](https://www.trendhunter.com/trends/crab-shell-batteries.md) - [Fast-Charging EV Batteries](https://www.trendhunter.com/trends/10-minute-charge-electric.md) - [Self-Charging E-Bikes](https://www.trendhunter.com/trends/vello-bike-design.md) - [Ultra-High Capacity AA Batteries](https://www.trendhunter.com/trends/ultrahigh-capacity-aa-battery.md)