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You call a device that generates electric power using sunlight a solar battery. Then this revolutionary product should be called a “hydro battery.” It generates electric power using any kind of liquid as long as it contains hydrogen oxide, or water as H2O is commonly known.

“NOPOPO,” developed by Osaka-based Nakabayashi Co., Ltd., a maker of photo albums and office equipment, generates electric power out of tap water, rainwater, seawater, beer and fruit juice, or even out of spit or urine (But please don’t call it a “urine battery.”)

It is very easy to use. NOPOPO needs only 0.5 ml to 1 ml of water, and you insert the water using an attached dropper through a pinhole on the cathode side of the product. After about two minutes, chemical compounds inside the battery react to the water and generate 1.5 volts of power. The battery is renewable and when it runs out of power, you simply add water again to recharge it.

One NOPOPO is good to run a portable radio for about 48 hours and an LED flashlight for about five hours. It depends on how much water is in the liquid you use. The more water the liquid contains, the longer NOPOPO will produce power.

Containing no environmentally hazardous chemical products, NOPOPO, which stands for “NO POllution POwer,” is disposable as incombustible garbage after use. Priced at just ¥600 ($5) (excluding tax) for a set of three, the unopened batteries can last about 20 years.

A flashlight and a portable radio are must-have items in disaster survival kits, but they are useless without batteries or nearly so with low batteries. When was the last time you checked the batteries for those items?

The Super Delios is a portable water purifier.
The Super Delios is a portable water purifier. | URBAN TECH

“Super Delios”

Along with a flashlight and a portable radio, a bottle of drinking water is a must-have item in an emergency kit. But, we don’t know how many bottles are needed to survive an evacuation until rescue comes. Even if we do, will you carry all the bottles of water when you have to move after a disaster?

Securing drinking water is the first priority after an evacuation when water, gas and electricity may not be available. Bottled water and even soft drinks are gone from supermarket and convenience store shelves and vending machines are useless without power. Additionally, you don’t even know where you will be when a natural disaster strikes.

Under such circumstances, a “Super Delios,” portable water purifier, makes water potable. The product, developed by Urban Tech in Gifu Prefecture, purifies underground water, well water, rainwater, water in rivers and lakes inhabitable by fish, and even water in a swimming pool.

The patented dual filter structure — a combination of fibrous activated carbon and a 0.2 micron hollow fiber filter attached to the mouth of the plastic bottle-shaped container — removes harmful disease-causing bacteria, mold and protozoa from dirty water to produce clean and safe drinking water. The quality of the filtered water has been guaranteed in tests conducted by a Japanese government-related research center.

The product is unfortunately not able to produce clean water from water possibly contaminated by poison, viruses, organic solvents, heavy materials, toxic substances and runoff from homes and factories.

One 300 milliliter container is capable of producing about 200 liters of clean water and the filter is replaceable.

This ¥4,082 ($34) product may save your life in times of emergency.


Download the PDF of this UN World Conference on Disaster Risk Reduction

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