[This review was collected as part of a promotion.] We use a lot of batteries at once because of all of our son's toys. It's great not to have to change batteries for a while. These batteries are long-lasting and reliable. We also are using some for our smoke detectors since we don't have to worry about switching them out for a long time. My wife is a musician and she uses these for her tuner/metronome.

[This review was collected as part of a promotion.] Energizer is a well known brand that makes good quality products. This one is no exception. These batteries outlasted other brands I have tried, no contest. I have used Energizer my whole life, very familiar with the bunny that keeps going, and going, and going...

[This review was collected as part of a promotion.] I have been using these batteries for a while now. They are very reliable for fire alarms, which 9V's are generally used for. I certainly like that this comes in a multi-pack compared to the single packs available in most grocery stores.

[This review was collected as part of a promotion.] I got this a couple of weeks ago and just in time. One of my solar lights that I use had just burned out. It is a little dog that I enjoy having lit up. It seems like it is brighter and I am happy to put a battery in it that is a reputable brand.

[This review was collected as part of a promotion.] Energizer is a brand that I can trust. I like to keep different sized batteries on hand for many different needs. This particular type is great for my kids’ toys, flashlights and some of my smoke detectors. They are long lasting, and I have never had my energizer batteries leak. Overall, these are a great product from a great brand.

[This review was collected as part of a promotion.] I use these batteries for my tens unit. I used to use generic batteries, but they would only last one day. I need dependable batteries when I’m in pain! I’ll only buy Energizer batteries to use in my devices! Would you trust a generic battery in your smoke detector??

[This review was collected as part of a promotion.] Only batteries I use. It last a very long time, I don’t have to be changing regularly like I used to with other brands, I have had too many flashlights, radios, other battery driven devices ruined by Duracell and other low quality batteries. Never with Energizer batteries, will never buy any other brand that’s for sure.

[This review was collected as part of a promotion.] I use these in my emergency lanterns and it is extremely important that I have long lasting, dependable batteries. These are perfect and last me a long time keeping my lanterns bright even when the power company can't manage to keep the lights on! You should remove them if you are going to store the device outside though, but that's true for any battery to protect the battery and the device, not because I had an issue with these specific batteries.

[This review was collected as part of a promotion.] I highly recommend these batteries last a really long time! They are rechargeable too. Alot if my kids toys use c4 so these came really handy since these specific ones are a bit harder to find in stores.

[This review was collected as part of a promotion.] Energizer has been my go to brand of batteries for many years now as they're dependable and long lasting. These batteries will not disappoint and definitely live up to their reputation. Don't waste your $ on purchasing other brands!