Surprisingly, the more costly brands, Duracell and Energizer, were revealed to have higher power, more energy, and last longer than the less expensive dollar store batteries. Sure, the more costly ones have greater power, but for the same price, you get more batteries in the dollar-store pack. They also last longer because they are not exposed to the wear and tear that the lower-cost batteries are.
What's so great about Duracell batteries? They're made from quality materials and have a good reputation. Also, they tend to be more affordable than Energizer batteries.
That being said, all battery types have a lifespan and will need to be replaced before they no longer provide sufficient power. It is just a matter of how long they will last before reaching end of life. At the end of its life, a battery can still deliver some amount of power which is why it is important to switch off your devices when they are not in use. This will help preserve the remaining charge.
Duracell batteries are made up of lithium cells and can be recycled when they reach the end of their life. Recycling helps reduce landfill space usage and provides resources for other applications. There are several ways to recycle a battery including using them in other products or sending them back to Duracell for recycling.
The more costly batteries cost more up front, but they last longer. In the end, there isn't much of a difference—the it's same quantity of energy for the same money. Duracell and Energizer were three times more expensive but lasted three times as long. As a result, the cost per unit of energy purchased was almost the same.
There are several factors that go into how long a battery will last. The most important is the quality of the materials used in its construction. Batteries are made up of many small cells joined together to give enough power to be useful. Each cell contains an alkaline material that reacts with electricity to produce oxygen and water vapor. Over time these chemicals seep out of the battery and cause it to die. Good batteries have tight seals to prevent this moisture from getting in and causing damage. Cheap ones have no seal at all and so tend to leak.
Another factor is the condition of the plates inside the cell. The more worn they are, the faster they will deplete themselves. Batteries should never be thrown away before their expiration date; instead, they should be sent to a recycling facility.
Finally, the way a battery is used can affect how long it will last. The more energy you use it up, the sooner it will die. This is why batteries should not be left permanently connected or else they will drain down completely. It is best to use them up then replace them so as not to waste precious resources.
According to Kiplinger, experts believe that the batteries sold in dollar stores are of poorer quality. Wired discovered that AA batteries from the cheap shop have less stored energy than Energizer and Duracell: 2 983 joules from Dollar General 10,798 joules for the Energizer. 12,425 joules for the Duracell.
They also say that they can leak acid which can be harmful to pets and children. However, this does not mean that you should avoid buying batteries at a dollar store. They do have a lower price tag so they must be selling many batteries. Also, they tend to stock a wider variety of products so you can find what you're looking for even if it is not exactly what you wanted.
In conclusion, yes, dollar store batteries are as good as any other brand but there are reasons why you might want to buy them from a reputable source.
Is it really important whether we buy brand-name or generic batteries? Brand names certainly win when it comes to carrying the most energy, but you'll spend more in the long term. Allain spent $0.64 and $0.68 for one Duracell and one Energizer AA battery, respectively, based on Walmart.com rates. He found 675 milliwatts of power in each battery, which is enough to light a 100-watt bulb for about five hours.
In general, a cheaper battery will last longer if it's not made of quality materials. But other than that, any battery will do in a flashlight! They all have the same capacity type. That's why it doesn't matter much what brand or model of flashlight you use. As long as it has alkaline cells, it can be used with any old piece of equipment.
The most important factor is how hard you want your flashlight to shine. If you don't mind having a low battery level occasionally, then any old battery will work fine for your needs. However, if you need a constant bright glow, then you should probably buy a new set of batteries every time you change out the lamp in your head.