Years ago, the Samsung Galaxy Note 7 made headlines after its battery ignited in several incidents. Since then, although isolated, similar occurrences have been reported. Despite these high-profile battery failures, lithium-ion batteries remain largely safe and reliable.
The chemical processes within lithium-ion batteries are intricate. Like all batteries, they consist of a negative electrode and a positive electrode. In lithium batteries, the negative electrode is typically a mix of lithium and carbon, while the positive electrode is often cobalt oxide (though battery manufacturers are increasingly moving away from cobalt). These compounds facilitate a controlled chemical reaction that powers your devices. However, if this reaction spirals out of control, it can lead to dangerous situations, like earbuds melting in your ears. Factors that can trigger such an uncontrolled reaction include excessive heat, physical damage during use, manufacturing defects, or using incompatible chargers.
Here are three essential rules to keep you safe while using lithium-ion batteries:
- Avoid cheap cords, chargers, and outlet adapters.
- Keep the battery away from excessive heat (above 110 degrees Fahrenheit).
- Regularly inspect the battery for signs of damage.
The most crucial guideline is to steer clear of inexpensive chargers, cords, and adapters. These are often the primary causes of battery issues. Spotting a charger on Amazon priced $20 less than others? It’s likely not worth the risk. Lower prices are frequently achieved through cutting corners on insulation, neglecting necessary power management tools, and overlooking fundamental electrical safety practices. Remember, price alone does not ensure safety—always choose reputable brands and manufacturers.
Additionally, be mindful of heat. Excessive temperature can lead to various issues, both from an emissions and safety perspective. If your device overheats while charging, it could signal a potential problem. Keep an eye out for any swollen, bulging, or deformed batteries as well.
Source: www.wired.com