# Urine-Powered Batteries The Metalcell Portable Battery Needs Pee to Function By Allison Love | Published 2010-05-04 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/metalcell-portable-battery References: [coolthings](http://www.coolthings.com/metalcell-portable-battery/) & [gizmodo](http://gizmodo.com/5528190/i-order-you-to-pee-on-this-battery-soldier) The Metalcell Portable Battery is a unique backup battery that is designed for warfare when little resources are provided. The backup battery is perfect for a [weekend camping excursion](https://www.trendhunter.com/trends/clesana-x1-camping-toilet) as it uses anything salty to charge -- including pee. The battery's innards are magnesium plates which react with the salt content of pee or salt water creating electric volts allowing you to even [charge your laptop](https://www.trendhunter.com/trends/elecom-dec55l9000) with one salt water intake. The Metalcell Portable Battery is ideal for excursions of any kind, or even at home if peeing into a battery is your thing. ## Trend Insights (Trend Hunter) - Score: 4.3/10 - Popularity: 69% | Activity: 53% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial - Top markets: North America, Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What Makes This Trend Stand Out - **Urine-powered Technology:** Disruptive innovation opportunity: Exploring new ways to harness urine as a sustainable energy source for various applications. - **Alternative Energy Storage:** Disruptive innovation opportunity: Developing innovative methods of storing energy using unconventional and readily available resources like salt water and pee. - **Sustainable Power Solutions:** Disruptive innovation opportunity: Creating portable and eco-friendly power solutions for outdoor activities and emergency situations. ### Sectors Adopting This - **Renewable Energy:** Disruptive innovation opportunity: Introducing urine-powered batteries as a viable option for off-grid power generation. - **Outdoor Recreation:** Disruptive innovation opportunity: Providing eco-friendly backup power solutions for campers and outdoor enthusiasts. - **Emergency Preparedness:** Disruptive innovation opportunity: Offering sustainable energy solutions for emergency situations where resources may be scarce. ## Related on Trend Hunter - [Heatwave-Resistant Alkaline Batteries](https://www.trendhunter.com/trends/urban-electric-power.md) - [Saltwater-Powered Lanterns](https://www.trendhunter.com/trends/litepulse-ecolantern.md) - [Sustainable Rechargeable Batteries](https://www.trendhunter.com/trends/paleblue-usbc-cells.md) - [Stretchable Sweat-Activated Yarn Batteries](https://www.trendhunter.com/trends/yarn-battery.md) - [Paper-Based Energy Storage](https://www.trendhunter.com/trends/paper-battery.md) - [High-Performance Appliance Batteries](https://www.trendhunter.com/trends/backup-by-biolite.md) - [Crustacean-Based Batteries](https://www.trendhunter.com/trends/crab-shell-batteries.md) - [Camping-Ready Portable Batteries](https://www.trendhunter.com/trends/mobile-universe.md) - [Gas Canister-Inspired Campsite Batteries](https://www.trendhunter.com/trends/snow-peak-gigapower-battery.md)