USB Rechargeable AA Batteries 1.5V/1500mAh,Lithium Battery Quick-Charge 1.5 Hours with Micro-USB Charging,Li-ion Battery with Rotate Port (4-Pack)

We have an electronic battery operated deadbolt door lock on one of our doors at home. It uses 4 AA batteries and it has lately become a battery destroyer because the high-quality batteries we have been using have been failing after a very short time. Failures become very frustrating when you can't even get in your own door because the batteries won't work.I decided to try the Blacklube batteries because I was fascinated by the ability to recharge them via USB which I had not seen before. My decision to try them was based on the fact that if they failed I could recharge them and reuse them and recharging was the same as recharging the phone or bluetooth or anything else we have that is battery operated. Special recharging equipment that would cost more and would probably get lost was not needed.Even though I was fascinated by these "new" batteries I was still skeptical because the "premium" batteries we had been using were supposed to be the top of the line products from a performance standpoint. My thought was that the electronic lock had been failing because there was no way these batteries could possibly fail in such a simple current draw application. Boy was I ever wrong. I ordered 4 of these batteries for the door lock we are using and proceeded to use them immediately after they arrived.Right away there was a noticeable difference between these batteries and the previous AA batterie used. I was able to charge them up with the supplied USB cord and they all showed the red light indicating recharging. When the were fully charged they all showed the green light indicating ready to use. No more guessing whether the batteries are all fully charged or charged the same. I put them in the door and they have been working well ever since. The door lock is on an exterior door to the house and even through this "Polar Vortex" we have gone through the door lock and the new batteries have continued to work well. I am sure the old batteries we had previously used would not work well under those conditions because others had failed previously under less severe conditions.I am pleased with my purchase, I am pleased with the battery perormance, I am pleased with the ease of use, and I am pleased that my order was shipped immediately so I could use them right away. I would recommend them to anyone wanting or needing to purchase new batteries. Even though the initial cash outlay is a little high, the long term cost potential is very low because they can be recharged and reused many times.

Got these to use in some of my Blink XT cameras in areas that have less activity and motion detection sensing. The selling point is that the Blink XT cameras specify a 1.5V battery so these meet that requirement. Some people have had success with 1.2V rechargeables but not without work arounds. I was not going to go that route when these are a better option and they have in fact met or exceeded my expectations. As stated earlier, I would not use these in a high traffic area or you'll be changing/recharging them every few weeks. If you have Blink XT cameras placed in less trafficked areas then these are so worth it, although I wish they were a little less expensive which is the only reason I took a star off.

Fantastic battery, except for were the seem is in the middle. If you rotate it at all it will come unconnected and start smoking. Pretty sure it would start a fire if not caught.

Finally a real option for devices that require 1.5 volts. These deliver a very flat discharge profile until they run out of power. Only douneside is that they do not give you much warning before they die as the voltage does not drop like other batteries. They quickly recharge using any USB charger. Love them!

According to my amazon order, I should have received the GR1500X, but since the look and design of the batteries I received didn't match, I looked up their products and found their facebook page which shows the models. The ones I got were the GT1500M, not these listed. Contacted amazon and they credited me the difference. Shipping them back (which is against amazon shipping terms since it's a Li-Ion battery) would be pointless and a waste of time for a $3 difference in cost.So far they work well, and I haven't had issues yet. All four batteries charged up fine and are showing 1.51V no load. I bought them for my Oculus controllers and they fit in perfectly. I feel like I get better tracking than with lower voltage NiMH batteries, but that could very well just be the placebo effect, not sure how I would test that.I only wish I got the ones I ordered.

Admittedly I've just received these batteries so I can't write much about them. However what lured me into purchasing them is that I intend to use them in my Blink home security cameras (Blink XT models). I've only had my cameras for about three months and one is already asking to have the batteries changed (it's on a bit of a busy corner of my house which sees pedestrians and traffic). I like the idea of rechargeable batteries as if I have to change batteries every few months, as opposed to the two years on ideal settings that Blink claims, then I won't feel so bad about it. Batteries can be expensive, particularly the lithium ion variety, and you're putting waste batteries into the environment when a couple of hours on the charger can fully recharge your set and save them from the landfill...What I also like about these is that you don't need a proprietary cradle in which to charge. I was surprised when I stumbled upon these types of rechargeable batteries as they use a micro-usb port to take on power! Oh sure you can still find brands with cradles and those are just fine, but I really like the cutting edge idea of being able to plug them in like I would my cell phone using the port built into each battery. They even feature their own LED which'll glow red for charging and green for ready in under two hours (as opposed to the six hours or more I had to wait when I was a kid in the '80's...). Mine didn't even get warm to the touch like the old rechargeable batteries from years ago did or like some other reviewers have said about theirs...I just put two batteries in the camera that was asking for new batteries. Things appear to be fine so far and working normally. In a couple of months I may come back and update this review...

Bought these for a night time trail camera which flattened alkalines in a single night. So far it has been operating on the batteries first charge for most nights in the last fortnight!!!Really really happy with them so far and only time will tell how long they last. Price is an ouch but the performance so far has been brilliant.

Powerful batteries with long charge. Handy charging via a multi head micro usb cable. Seller's customer services were excellent when there was a problem with one of the batteries that arrived and it didn't work, and sent new one swiftly.

Ace

Bonjour,J'ai commandé ces accu rechargeables à l'origine pour les contrôleurs de mon casque de réalité virtuelle Acer AH101 (XMR pour PC) car dans ces contrôleurs, des accus habituels de 1,2V ne continent tout simplement pas. Je me voyais donc déjà obligé d'acheter des paquets de piles classiques, quand j'ai découvert via des forums qu'il existait des piles rechargeables 1,5V ville celles ci.Des réception, me premier test que j'ai fait c'est donc de les mettre dans les contrôleurs et effectivement ça fonctionne nickel.Par ailleurs j'ai un petit aspirateur de table à piles qui a du mal aussi avec des accus classiques (même des accus puissants en 2800mAh). J'ai donc voulu voir ce que ça donne avec ces accus 1,5V et le résultat est sans appel, vous pouvez l'entendre dans la vidéo que je poste avec ce commentaire, le moteur tourne bien plus vite et du coup ça aspire bien mieux !En résumé, je ne peux pas juger bien sûr de la longévité qu'elles auront, mais pour l'instant je suis ravi de ces piles et vais direct en reprendre en AA et en AAA.

Ich verwende zwei der Akkusätze in meiner Powershot SX20 IS. Die Ausdauer einer Akkuladung ist Vergleibar mit der von noname R6-Batterien vom Discounter. Zudem hat man den Vorteil der sehr geringen Selbstentladung gegenüber anderen Akku-Technologien. Auch nach zwei oder drei Wochen des herumliegens springt die Kamera nach dem Einlegen der Akkus noch an und tut ihren Dienst. Ein weiterer Vorteil ist die bessere Terperaturunempfindlichkeit gegenüber z.B. NiMH. Auch nach einer Nacht im Kühlschrank bei 6°C läuft die Kamera ohne Probleme. Unter Null hab ich aber noch nicht getestet. Aber der nächste Winter kommt bestimmt.