QUANTUM ALK BATT 9V 1PK by DURACELL MfrPartNo 66520

First, let me say that Duracell provided me with a free sample of this product. Having said that, I'm not particularly impressed by these batteries in any way. The Duracell Quantum batteries are apparently the longest-lasting alkaline battery, which is a great thing to advertise. I've had the product for a little over a month, and my battery usage is really high for many things. However, for those things, I use rechargeable batteries. Products ranging from video game controllers, to flashlights, to cameras all have their own rechargeable batteries that last much longer than these alkaline ones. I would recommend anyone who needs to have a constant charge to look into rechargeable batteries instead for their more important products. For anyone who grew up in the 90s, the charge meter on these batteries are really an old gimmick. You can find some fun in pressing to see the charge, but I'm not 10 years old anymore; the meter is usually irrelevant, since a battery with a low charge won't work properly anyways. An example would be the Quantums that I placed in my clocks around the house. Once the battery loses enough charge, the clock won't tick upwards anymore. For some, the meter could be helpful in knowing how low the battery's charge is, but if your product isn't working with one set of batteries, it doesn't matter what the charge is: you'll need to swap them anyways. And I doubt the casual consumer will be opening up their battery compartments just to check on the charge meter of a product in use. A battery like the Quantum battery is simply overkill for any casual consumer. I could see its applications in workplace settings where batteries are a life-or-death situation, but no casual consumer should be paying a premium for these batteries. You'll see a negligible benefit from using them in everyday household products. At best, you could buy a pack of these and save them for important equipment, but for daily use I'd recommend buying the generic batteries that offer a higher battery count for comparable price. Having said that, the Quantum battery is definitely a quality product, and the items I've use them in (clocks and Xbox controllers) have been reliable and they last for a while. But I can't recommend them for the price, quantity, or for daily use. (This review was collected as part of a promotion.)

So, I waited for a while before using worrying the review so I can actually test the battery life. I used these in an nightlight and they have been amazing. My battery has lasted really long web after using these night light every day. Duracell provides better battery life than most batteries, including some of the other premium brands. For these batteries to last nearly 3+ weeks.. it's amazing. Definitely gonna be my regular battery. (This review was collected as part of a promotion.)

As soon as I received these from Duracell they went straight into my Nephew's battery powered Nerf Gun. Great so far, and he's been using it pretty constantly; been three weeks of pretty excessive use. What's even better is that with the power gauge directly on the battery I can tell when it's about to run out of power; meaning I can switch them out before they die and thus, 'the meltdown" : ) (This review was collected as part of a promotion.)

I recently tried Duracell quantum batteries which I received free of charge from Duracell. I used them in my portable neck messaged because that gets daily use. I was very impressed with how long the batteries have lasted so far. It's been almost two weeks since I've installed the batteries and my neck messaged is still going strong. I've even removed the batteries to check how much power was left and they are about half full! That's crazy! (This review was collected as part of a promotion.)

I received free Quantum batteries from Duracell and they are working great. I use them in my video game controller and so far they have outlasted my regular batteries with no sign of slowing down. Definitely use these batteries from now on (This review was collected as part of a promotion.)