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AA batteries

AA batteries are the most common across the world, alongside AAA batteries, D batteries , 9 volt batteries and 12 volt batteries.

From game batteries, digital camera batteries through to television remote controls, the AA battery powers much of our day-to-day life.

The advantages of AA batteries are:

• Low price - a multi-pack of AA batteries is a low cost purchase.
• Portability - the batteries are small, light, easily stored and safely transported.
• High-capacity - In relation to size, AA batteries offer high levels of performance.
• Availability - Packs of AA batteries, in a wide range of quantities, are available worldwide.

And to assist in the power demands of new technology equipment, many leading brands including Energizer, Duracell, Sanyo and Panasonic have launched new AA batteries which offer greater power for electrical equipment with high-power demands.

How the AA battery works

The two terminals on each battery are a positive and negative. When the two opposites meet, a chemical reaction takes place which provides energy to your chosen device.

Alkaline batteries became popular in the 1970s, replacing the low-powered and environmentally harmful carbon zinc and zinc chloride varieties.

Rechargeable AA batteries

The rise in personal electronic equipment such as digital cameras, MP3 players and radios has led to a growth in demand for rechargeable batteries.

While the voltage offered is lower than non-rechargeable batteries, most equipment is designed to tolerate this lower power.

The capacity of these NiMh batteries differs between uses.

A number of measures can help boost the lifespan of rechargeable batteries. These include:

• Being careful not to reverse charge. Loading batteries into a charger incorrectly can cause damage.
• Allowing the batteries to power down fully at least once a month before performing a full charge.
• Keeping the batteries out of direct sunlight, preferably in a cool, dry place.

By using rechargeable batteries correctly, you can expect improved performance and greater lifespan.

The “high drain” nature of digital cameras etc has led to many individuals adopting rechargeable AA batteries. They last longer than standard AA batteries, reducing waste and cost, and can be recharged quickly and efficiently.