Posts Tagged ‘battery’

NoPoPo Eco Water-powered AA Batteries

Nopopo Eco Water Battery

Nopopo mean No pollution Power battery. This is another move by Japan to promote an Eco-friendly environment. This battery is amazing, it can be recharge by almost all kind of water. For example water, beer , cola and the inventor also mention human urine!! Once the battery is fully charge it is capable of powering up a LED flashlight. If the battery is flat, simply use a syringe to suck your liquid of choice up and then squeeze it into the battery. That it. very simple.

Specifications

• Two sets of two batteries (4 AA batteries in total)
• Proprietary NoPoPo hydro-electric battery from Aqua Power Japan
• Holds charge up to ten years
• Also charges with beer, sake, cola, or even urine
• Size: 9.65×2.75cm (3.75×1.08 inches)
• Current: 60mA-300mA
• Capacity: 1.6Ah-0.6Ah
• Voltage: 2.1V
• Can be charged up to five times
• Manual: Japanese

via japantrendshop

Use Lemon as your Battery

Making a battery using a lemon is a common project that can be found in most science textbook. Successfully creating one of these devices is not easy. Batteries consist of two different metals suspended in an acidic solution.  Copper and Zinc work well as the metals and the citric acid content of a lemon will provide the acidic solution. Batteries like this will not be able to run a motor or energize most light bulbs.  It is possible to produce a dim glow from an LED.

Lemon battery label

Insert a 1cent coin into a cut on one side of the lemon. Then push a galvanized nail into the other side of the lemon. The nail and penny must not touch.

4 Lemon battery

Usually a single lemon battery will produce voltage of about 0.906volts so when you connect 4 of them into series circuit it produce roughly 3.5volts. This is more than enough to make a LED glow. If you fail in your first attempt try to experiment with different zinc and copper (The 1 cent coin may not be purely copper so try experiment with different coin).

via hilaroad