The Common Myths around Batteries


It is safe to say that there are myths and wrong information surrounding almost everything in this world. Whether it is a seller trying to trick a consumer with misinformation or someone who doesn’t know the facts right passing on the wrong information to someone else. Just like that, the myths stay on for years, maybe even decades without being questioned. Batteries have also been a victim of the misinformation present in the world. By tackling some of the most popular myths with hard facts, it can enable a consumer to make more educated choices.

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Alkaline Batteries Offer a Higher Capacity than a Rechargeable Battery

This is a myth that is quite to prove wrong due to the fact that many corporations sell their battery using the tag “rated capacity”. This in return helps keep the myth that “disposable batteries have a higher actual capacity” in circulation instead of dispelling it. The actual capacity is important when it comes to day to day usage but it is quite difficult to figure out. This is because the actual capacity depends on the task the battery is being used for. When it comes to high drain gadgets such a portable camera, a rechargeable battery from a brand like Energizer will work for a longer than an alkaline battery from the same brand. Actually, in a device such as a camera, a NiMH battery will work for up to 4x longer on one charge when compared with alkaline batteries.

Phrases such as Heavy Duty and Super Heavy Duty

The battery segment has no standard and is not properly regulated. This has led to many terms being thrown around with no care. For an instance, on most scenarios, heavy duty batteries are the weakest batteries you can buy. Traditionally, heavy duty batteries referred to Zinc chloride batteries that had a higher capacity (roughly 50%) when compared with carbon zinc batteries. This was around 5 decades ago. The term is now deceptive because alkaline batteries provide more than triple the power when compared to zinc chloride batteries.

Throwing a Battery into a Fridge Increases the Life Span of the Battery

When an alkaline battery is kept at normal temperatures, the rate of discharge is approximately 2% per year. When these batteries are frozen, the self-discharge reduces but by a marginal value. This makes the whole process quite a waste. But when an alkaline battery is stored at a higher temperature, the self-discharge drastically increases. At 30 degree Celsius, the self-discharge is around 5 %. When the same battery is exposed to a temperature of 38 degree Celsius, the self-discharge races to 25 %. The self-discharge is measured per annum. In the event that you live in a warm area and the alkaline batteries are subjected to warm temperatures, then it is advised you keep them in the fridge.

When it comes to NiMH and NiCd batteries, the self-discharge rate is much greater. At a temperature of 20 degree Celsius, these batteries can discharge a few percentages in a day. At lower temperatures, the self-discharge is lower, so when it comes to such batteries, you can benefit from keeping them in the fridge.