These batteries are perfect for your camera, MP3 player, etc. I also love them in my battery operated toothbrush. With regular batteries, I had to change them out every 2-3 weeks. These last 4 months before my toothbrush slows down. Wonderful! They're expensive, so I only use them in my cameras and toothbrush, and use cheaper ones for everything else.

I bought these batteries for outside Christmas lights. I read reviews were they were supposed to last longer and cooler temperatures. These are much more expensive than regular alkaline batteries. I was very disappointed because they did not last any longer than the regular alkaline batteries in my outside lights. The temperatures were cool, but not freezing.

These Energizer Ultimate Lithium AA batteries have been working great for me so far. They last much longer than regular batteries and provide strong, reliable power for my devices. I like that they work well in high-drain electronics and don't need to be replaced as often. They also feel lightweight and are easy to store. Great quality and definitely worth it for long-lasting performance.

I use these batteries to power my CCTV system. They are a little pricey but having switched to another brand that was a little cheaper I realised that the longevity in energiser batteries was superior as I was having to replace the cheaper batteries more frequently. The batteries are so light that it doesn't have an impact on the cameras shifting over time so coupled with the reliability and weight, it means less time up a high ladder to shift the cameras. The batteries arrived in professional packaging which makes storage easy and I have never had any issues with leakage or corrosion in the years that I have used the batteries. Well worth the price.

I use these for my outside cameras. Overall they work great but they don't last long with recording. I'd say I have to change the batteries roughly every 1-2 months. If I leave my cameras on consistent record they last about 2 weeks- so battery life could be better, but for the price point they're not bad.

I use this battery most of my household items, it's durable. It has a good packaging. They feel solid but are not heavy, perfect for everyday devices. The power release is super sturdy. They deliver a steady 1.5V output, so my devices run pretty much smoothly. They handle temperature change pretty well, performance doesn't vary based on temperature change.

We only use Energizer Ultimate Lithium batteries in our security products and other critical devices that need long lasting batteries. These have also been very helpful in my chatty smart remote that wakes itself up constantly—it used to exhaust standard batteries nearly every other week but now these batteries can keep it going for months. These are durable and reliable, with no leakage or safety issues so far. The packaging is standard so that one needs to be on the lookout for the Ultimate branding to find this exact Energizer variation. When these die infrequently, they are not rechargeable, so I add them to my pile to recycle and dispose of safely at the local hardware store.

Not recommended for your remotes controls. I bought these because they are suppose to not leak and thought it would be a good idea to put them in all of my remote control for tv, electronics, etc. Big mistake as they are failing one by one. They are shorting out and/or causing problems with my remote controls. If you are using these and it appears your tv remotes, or in our case our select comfort remote, are not working properly, it is likely due to these batteries. We thought our remotes were the problem but it turns out that it was the lithium batteries - four have already gone out in less than a year. I have a battery tester and the 2 batteries in the remote appeared to short out. On another two, batteries appeared to test at maximum strength but the remote wasn't working properly. Changing the batteries fixed the problem. Again these batteries are less than a year old and it says they should last years. Now my concern is whether I should go ahead and replace the more than 40 of these I have used. All the batteries so far that are causing problems/failed have been the AA batteries. My concern now if for the AAA batteries bought. Its been less than a year so I expect a lot more issues.

Use these batteries for my kids toys! They are often left on so using unnecessary battery usage & still have a ton of life left in them with no signs of the batteries dying. The power to the toys is great, they all work as they should with bright lights & loud music! Definitely recommend.

These Energizer batteries are excellent for cameras and other outdoor electronics. Works very well in cold conditions so you don't have to worry about cold nights running the batteries down. They are not any smaller or bigger than other batteries so no issues with fitment.