paleblue USB Rechargeable AA Batteries (4-Pack) - 2550mWh Lithium Ion, 1.5V, 1000+ Charge Cycles, Includes 4-in-1 USB-A to USB-C Charging Cable, LED Charge Indicator, Quick 1.9 Hour Charging

These and their AAA counterparts, hold up well on the shelf. They deliver power when needed. They charge quickly and easily with the USB adabpter (i charge them with my computer). The only real downside is that it's nearly $30 for four batteries.

Excellent batteries. I wasn’t sure if there was value for these at first, but now I’m convinced, having had these for 1.5 years. I use these for everything around the house that I’ve regularly had to change batteries for (smart door locks, trash can, kids toys, scale), and my favorite thing about them is how quickly and easily they charge. And they’re still going strong with no sign of a drop in overall voltage. Love them. Highly recommended.

A must have if you have kids with toys that require batteries (and "eat" batteries) or if you use LED candles a lot!We have purchased quite a few packages of PaleBlue rechargeable batteries over the last few years. They are awesome! At first glance, I can see why some people would think they are pricey. They ARE kind of an investment at the outset, but when you figure that each battery can be charged 1,000 times, the price per battery is negligible! Truly, when you consider how many charges each battery has, you realize that traditional batteries are SIGNIFICANTLY more expensive. Plus, with non-rechargeable batteries you have the issue of having to dispose of them. It's not always easy to find battery recycling areas and you're not supposed to just throw them in the garbage.A couple more pros: they fit anywhere a traditional battery will fit. This isn't the case for all rechargeable batteries!They are very well made. They feel sturdy and high quality.They charge quickly, and the light up indicator shows when they are fully charged.They are the type of battery that will give you full power right up until the end, before needing to be recharged. Some batteries will start to weaken over time which greatly diminishes the performance of whatever you have the batteries in. With these batteries, you get full performance until they need to be recharged.It's true we haven't tested the 1000 charge claim yet. We've probably only cycled our batteries 100 times, and they still perform beautifully for the same amount of time on each charge. Even if they fail at this point, which they don't show any sign of doing, we will have gotten our money's worth many, many times over. HIGHLY RECOMMEND!

Got these to use in battery lights. Work great. So neat how you plug in to recharge. I charge once a week. Very pleased.

I’m a musician and I use these for my wireless units. They work great and last for 5-6 hours on a single charge. A few things I’ve noticed after almost a year of use:They die all at once. My battery indicator shows full until they die. Not a huge deal once you get used to how long they should last. I just charge them between shows to make sure they are full each time I use them.In my experience, the charger is picky. I’ve tried multiple USB cubes from various manufacturers and different wattages and some work, some don’t. Some will charge 3 batteries but not 4. Not a huge deal since I have a ton of cubes available but it’s something you should know. If you have an issue with them not charging correctly try a different USB cube. Should fix the issue.

I bought these for our church’s worship team (9v and AA). Love the longevity and how quickly they recharge. These power wireless audio devices for us and have maintained great charging capacity for the last two years.

I have bought energizer and durecell rechargeable batteries. Both needed there own charging stations. The energizer batteries would last a very small time on full charge and then would charge pretty quickly. The durecells would last longer but some would not charge after just one use. Both were horrible products. The pure blues last three times as long as the durecell rechargeable and there life span is unknown to me at this time as none have failed on me.

It is so easy to use. The power cord plugs right into the individual battery and has an indicator light to show that it is charging. The little case is nice because it holds the batteries that have been charged and the charging cable in a convenient easy to find place. I have used this on high drain devices and the batteries do very well on devices that only use one or two batteries. It is nice to have backups available While charging the drained ones. It does not feel warm or overheat and that is always a concern for me with rechargeable batteries and packs. I would recommend this highly.