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Dangers From Nickel-Cadmium Batteries

Nickel-cadmium (NiCd) rechargeable batteries are common in consumer electronics. The batteries are cheap and use adapters to charge. Like many components of today’s devices, they can be dangerous if mishandled. The most important thing to remember about nickel-cadmium batteries is that the dangers are avoidable if the batteries are used properly.

  1. Don’t Open It

    • There’s no reason to open a battery of any kind, much less one filled with a corrosive mix of hot chemicals. If you find that a battery has somehow broken open, dispose of it carefully in a plastic-lined metal container. The gases produced in the battery’s chemical reactions can be hazardous if inhaled, or if the material comes into contact with skin or eyes. In case of ingestion, you should call a physician or poison control center immediately.

    Use

    • Especially at the end of their cycle, when NiCd batteries can reach temperatures of more than 120 degrees Fahrenheit, it is important to handle them carefully. Many batteries have internal safeties to ensure that the temperature does not rise to dangerous levels, but it is important to check batteries periodically to ensure they aren’t too hot.

    Storage

    • It is important, especially with larger NiCd batteries, to ensure a proper storage environment. The batteries should be stored in a place that is cool and dry. Also ensure that unpackaged batteries are not stored together. A Rayovac Material Safety Data Sheet warns that not following this guideline could lead to shorting out cells and the potential for heat build-up.

    Disposal

    • The dangers of NiCd batteries extends beyond consumer use. They can also be hazardous to the environment if not disposed of properly. A safety data sheet from UniRoss, a battery company, says that NiCd batteries are not biodegradable and “should not be released into the environment.” Never dispose of the batteries as regular trash, or through incineration. Instead, drop your dead NiCd batteries off at a local waste or recycling center.

    OSHA Guidelines

    • NiCd batteries are listed as “not hazardous” under Occupational Safety and Hazard Administration (OSHA) guidelines. Even so, the manufacturers of these batteries release safety sheets on their proper use as a service. It is important to follow their directions when using the batteries and any accessories. See their manuals and other material for more information on specific batteries.

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