Survival Frog EasyPower USB AA Rechargeable Batteries -1.2V/1450 mAh Long Lasting Double A USB Rechargeable Batteries - Rechargeable Batteries Co. - (4 Pack)

TLDR:Great product. Solid made, easy recharge, charge held well.98% comparable to capacity of a regular AA Duracell battery.One out of four batteries was damaged for me, and before I knew for sure, the seller already sent me a new pack.I am definitely coming back to purchase again from this seller.Long story for whose needing more details... and nerds. =3I use a high-powered device every day for work and hobby. I've started with a NiMH rechargables, but within a few months they were inoperable, due to constant abuse (also low quality, but I got them with the device). So I decided to try the regular AA Duracell and Energizer batteries. Both are NiCa and rated around 1400-1700 mAh. I clocked about 7 hours of use off the regular batteries, give or take half hour. Getting tired of spending money constantly on batteries and polluting, I look up these batteries.Now, I've also looked around - amount of mAh, reviews, even company itself. I decided to try out Survival Frog. I was not disappointed.As I have mentioned above, I think one of the batteries is a little degraded chemical-side and discharges quicker than its partner in my device. So this kept in mind I would like to speak mostly about the good (regular) pair (there are four in the pack) and provide best/average stats as I have came to experience them.First of all, the items are great in terms of use - they compare to the regular batteries within 98% of capacity, in my opinion (about 10 uses for me at the time of writing this review). For the remaining 2%, they made up more than enough with rechargability.So some of my testing/usability stats:- With my high-power device I get a solid 6-7 hours of time, solid use, no issue, no interruptions. (compared to 7 hours of Duracell)- I have charged with a Mac, "PC" and car charger. Different amp grades. Consistent use, Batteries shut off on their own.- Recharge time is about 40 minus off a computer-out USB (I have not clocked car charging because driving take attention, sorry)Pros:- Reusable over and over... and over... No drop in performance after 10 charges, consistent use time.- Rechargeable (I mean... this is why you are buying them... So you already knew this. =))- "Comfortable" - Cap is secured well for the USB connector, although I will need to see how long the rubber string lasts. Looks decent though.- Comes with a small USB hub for charging. Very lightweight with switches for on-off.- Very lightweight (I think they are lighter than regular batteries)- Design is, actually, pretty nifty (Minus the color, but is for "frog" color)- Seems to be build quite solid - don't seem flimsyCons:- Caps don't always fit well visually, but only visually - there is no interruption in service and electric contact is solid- Poison-Green color is a con for me, per personal preference.I would definitely purchase again, when the charge degrade.

I've been using these for years & they WORK & are super convenient. I have saved a ton of money on batteries for everyday things like my xbox controller, electric toothbrush, wireless mouse, etc. And it is so convenient when your wireless mouse battery dies & you can just charge the battery right into the USB port of your computer. I have had only 1 battery in my briefcase since I've discovered this item - and I have yet to throw out a single battery. They haven't gone bad yet & it's been years! As long as they continue to make it, me & my family will continue to buy it. I only wish they'd ship to Hawaii, otherwise this is an amazing value.

Some of the other reviews made it sound like I would need to be charging these pretty regularly, but the one I've been using in my computer mouse, I've had in there for almost 2 months and the one battery has lasted this whole time without swapping it out. They fit perfectly, so there is no worries about them being the wrong size or anything with the cap. It makes sense that the cap would be attached, that you cannot fully remove it just to make sure it lines up correctly when you put it back on, and having that cap attached limits where I can charge it, I use a USB hub, so I had to move some wires to get it to fit, but they charge very quickly, and they definitely hold that charge. I wish I had these when I was younger, and needed more batteries in my life. I would have saved a lot of money.

I’m sure I won’t be using any other batteries. This is the one that can’t be beat.

i loved these batteries so much i ended up getting more. so easy to use especially if you have something like an xbox controller that loves to munch batteries like its user does chips. swap in other pair easy then plug them into the front of console or a PC its so easy to do. only downside i have seen with these batteries is they have about 5% less charge then a 1 time use aa but... when take into account these can be used multiple times i am more then happy. overall gotta be the best USB rechargeable's i have seen.

The USB charging works great for my wireless mouse and keyboard, and most of the batteries have been working great. I've been using the batteries for about 2 years, and one of the batteries has always given me trouble, it would only last a few days in my mouse, while the others would last over a month. I could still use it in my keyboard, since it used less power, but today the battery stopped charging all together.

These are exactly as described in the advertisement. A good charge can last a very long time! I’ve used these batteries for things like my milk, froth, remote control, and beauty tools. I can probably go up to a month or maybe even more sometimes before I have to recharge my items. For context, I use my froth or daily, my remote control daily and my beauty tools weekly.

Love that the USB is built in to the battery. Comes with little plastic case and easy to charge and use. Great purchase for all those electronics!