Tag Archives: battery

Alkaline Battery

A disposable, rechargeable battery with a high energy density that has storage longevity. Mostly used in consumer electronics such as remote controls, flashlights, etc. In an alkaline battery, the anode (negative terminal) is made of zinc powder and the cathode … Continue reading

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Nickel Cadmium Battery

NiCd is a type of rechargeable battery that uses nickel oxide hydroxide and cadmium as electrodes. Widely used in applications such as power tools, they have a high discharge rate but have low capacity compared to other rechargeable batteries. There … Continue reading

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Nickel Metal Hydride Battery

This battery uses a hydrogen absorbing alloy for the negative electrode instead of cadmium. They are interchangeable with most NiCd batteries, but NiMh batteries have a greater capacity and they are more environmentally friendly. The positive electrode for this battery … Continue reading

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Lithium Ion Battery

A very light, rechargeable battery commonly used in notebook computers, cell phones and camcorders. As one of the newer batteries out today, this battery can give 40% more capacity than a comparable sized NiCd battery. This battery is a rechargeable … Continue reading

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How to Build a Galvanometer

First you need to gather up all of the materials you will need. Below is a list of the following items needed to conduct this project: • A battery power pack • A compass • A strip of 3” x … Continue reading

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Does Cold Affect Hearing Aid Battery Life?

First you need to gather up all of the materials you will need. Below is a list of the following items needed to conduct this project: • 3 hearing aids • 3 hearing aid batteries to fit the above hearing … Continue reading

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Electrodes & Electrolytes Experiment

First you need to gather up all of the materials you will need. Below is a list of the following items needed to conduct this study: • Zinc sheet • Copper sheet • Lead sheet • Zinc nitrate solution 200 … Continue reading

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How to Build Your Own Telegraph

First you need to gather up all of the materials you will need. Below is a list of the following items needed to conduct this project: • 2 pieces of cardboard – 20cm X 10cm • 2 pieces of cardboard … Continue reading

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Hand Battery Experiment

First you need to gather up all of the materials you will need. Below is a list of the following items needed to conduct this project: A DC microammeter – able to read 100 microamps An aluminum plate and a … Continue reading

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Should You Refrigerate Your Batteries?

Methods/Materials 40 AA Alkaline batteries are to be divided into three groups (room temperature, freezer, and refrigerator) for 40 days. After 24 hours are allowed for them to come to room temperature they are to be tested in a battery … Continue reading

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