[This review was collected as part of a promotion.] I wanted this multi-pack of Energizer 9 V Max batteries to power my smoke alarms and as backup power for my alarm clock. These Energizer batteries perform exactly as expected, and I'm very pleased with them.

[This review was collected as part of a promotion.] I happen to have one CD player that requires this type of C4 Batteries, The reason I like Energizer batteries is because they last very long time. This is a brand I always look to buy when I need batteries on my smoke detector, my remote controls, and my flashlights. Love energizer batteries.

[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 love these c4 batteries they are long lasting and they are prefect for flashlight and other things that use a c4 batteries. these energizer c4 batteries is perfect for hurricane seasons and at night .

[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.] 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!

[This review was collected as part of a promotion.] I got the Energizer 9 V Max - 4 Pack battery's and they actually last a long time ! Definitely will be buying this brand more often ! Super easy to install into any product that uses a 9 volt . Love the little bunny on the cover .

[This review was collected as part of a promotion.] Energizer batteries are a brand we use and trust consistently. They’re long lasting and provide the power our remote control cars need. We have tried several “off brand” batteries and they never provide us with the power or longevity we need.

[This review was collected as part of a promotion.] I got this a few weeks ago and love them! I feel like it made my things I needed it for run way better than any other ones. Definitely recommend this brand to anyone! .