ER14505 Lithium 10 Pack Batteries AA, Double AA Battery 3.6 Volt AA Lithium Battery 2400mAh

It fits my head_mount flashlight and is very bright

I was so excited to try these batteries out because I had to replace batteries on a oil gauge sensor that cost for a 3.6 V put two batteries in and then recheck it to see if it was powered on and it states to me that the batteries are low on power would highly not approve this product.

Fairly priced batteries considering;They are 3.6 V NOT 1.5 V as are most AA batteries.They are 2400 mah while most are less.While there are cheaper lithium AA batteries, I've not found cheaper 3.6 V 2400mah.I plugged 2 into my computer moused and another in a clock. I expect them to last a real long time, compared to alkaline.These batteries are good for any AA use, it's best for power hungry devices, (xmas candlelights),,, or for devices that are a pain to replace (wall clocks) or devices that ya just want to last longer (remotes, mouse, keyboard, etc).Though the price appears to be higher than cheap lithium AA, these are actual a great value.Easy recommendation.It will take months for these batteries to die, so I can't judge longevity, so I can't go 5-star. I will update when the batteries die.

I got these for my Blink security cameras and they have been working well.I see a lot of mixed and poor reviews on these batteries. I almost posted a bad review of how these didn't work at all - before I realized each battery has a thin clear plastic wrap that's so tight I didn't see it until I had already tested 6 of the batteries on different devices. Peel off the plastic - they work fine.I think a lot of folks might not understand that AA Lithium batteries are not supposed to be rechargeable - they have a higher voltage (3.6 volts) than standard 1.5 volt alkaline batteries and operate at more extreme temperatures. The higher voltage is required by some devices, like Blink security cameras. They work in other devices, but they are overpriced for regular AA 1.5 volt use.

Bought these and all the batteries are dead.

The cells came individually vinyl wrapped, so if you find they're not working, do make sure to peel them off first. The cells are very good quality, and worked excellently in various devices. But since these are AA size, without any difference or distinction, but roughly twice the voltage of normal AA batteries, pay careful attention where you use them. Make sure you put them in devices that take 3.6 V. These are single use, but with the bigger capacity, I'm hoping they will last longer. So far, they're working great, at a fair price.

Bottom line: OK, but not impressive.I thought these would be ‘stronger’ than conventional AA’s, but they ended up being almost equal; in some cases, a little less. I tried them in different flashlights to measure their output. Wasn’t scientific, just ‘is the output brighter or not as bright’ as the same flashlight with an off the shelf national brand. Just visually, no discernible difference in two flashlights, and actually a little less in two others. The other brand I compared them with was a 1.5V 2500mAh, so it was close.Maybe it’s just me or my flashlights, but these were a bit lackluster overall. Ok, but not impressive. I’ll try them in a kids toy also, though that will take awhile (I’ll update later).

Only work for five minutes in my smart oil gauge