How to distinguish between good and bad batteries is an important concern in daily life, as inferior or counterfeit batteries may lead to malfunctioning devices. Here are some methods to differentiate between good and bad batteries:
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1.Weight Check: For batteries of the same brand and specifications, you can use a scale to compare their weights. Generally, higher-quality batteries tend to be significantly heavier than lower-quality ones. For example, the weight of a Changhong alkaline battery (size 5) can reach 23 grams, while inferior products may not exceed 16 grams.
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2.Price Observation: Price is often an indicator of battery quality. High-quality alkaline batteries typically come with a higher price tag, so avoid opting for cheap options from vendors without proper certification. Such batteries may have a shorter lifespan and pose risks of leakage and environmental contamination.
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3.Appearance Inspection: Quality lithium batteries usually have detailed information on the packaging, including the brand, manufacturer, battery model, nominal voltage, battery polarity, production date, shelf life, and standard compliance number. The packaging should be well-crafted, clean, and free from leakage. When purchasing, check if the product is labeled with phrases such as "mercury-free," "0% mercury," or "mercury-free formulation."
By following these three steps, you can relatively easily assess the quality of batteries. Choosing high-quality batteries not only enhances device performance but also reduces negative environmental impacts.