1.5V AAA Lithium Rechargeable Battery, 1.8h Fast Charge, USB Charger, Constant Output at 1.5V, 1110 mWh, 4 Counts with Charger

The batteries charge quickly, hold a nice full charge and work great in place of the disposable AAA that I previously used. (Fwiw, I am initially using them with adapters that increase the size to "AA" so that I can reduce the weight in my Oculus controllers for playing Ping Pong.) It is true that these rechargeable lithium ion batteries are a lot more expensive than the disposables, but I looked hard and it seems like ALL of the comparable lithium ions are at least as expensive. I would also point out that this company says you can "only" use *their* charger with their batteries, which is a little bit annoying until you realize that every single one of their competitors says the exact same thing. In the end, when I consider how much I am going to save (and how much better it is for the environment) when I stop throwing out conventional batteries, I am very pleased with both the product and the company. (I had a minor technical problem and Tenavolts supported me quickly, fully and with no questions asked. Good people!)

One of the batteries in the pack wouldn't hold a charge. I contacted the company and they sent a replacement no questions asked. The replacement works perfectly. Good company, good service, good product.

Immediately saved me a ton of money running my Zoom H1N, obviously. They just plain work. One thing I'll say is that, given lithium's ability to hold it's voltage, your battery level meter won't go down smoothly over time. It'll stay at full bars until the voltage finally dips, and then it's done. Time to charge. Most of those meters are operating off the assumption that voltage will gradually decrease (a battery "running out" over time). You don't notice that "lithium cliff" on your phone, because your phone takes the stable voltage into account. Something that's designed to use AAs doesn't. So, aside from that, which isn't the battery's fault at all, they're wonderful so far. The device gets all 1.5 volts out of each cell, they last longer than conventional cells, and they charge up incredibly quickly. If you don't buy these things, there's something wrong with your head. I don't know yet if one brand is better than another; they're more than likely coming from adjacent factories, but these, at least, function as advertised. I'm not super cool with lithium mining, but this isn't adding a new battery to the world. It's removing about a thousand, because they aren't exaggerating the potential life of these things. That's a net positive effect overall.

I have been using 3 AAAs in a z-wave IR device acting as a manual thermostat for a minisplit. I have two others: one with EBL NiMH, the other with Eneloop. I have to recharge the NiMH batteries 2-3x or more often then the Tenavolts. I never took stock in device manuals saying Alkaline only, 1.5V. I think the reason these work so well is the 1.5V and the constant voltage that lithium delivers. It's a con, for me, that the batteries cannot be charged in my "universal" chargers that do NiCd/NiMH/Li-3.7v/9V. However, for constant drain smart devices, or LED Lanterns I can see this outperforming the best NiMH.

I purchased this for the electric lock in my rv that uses a lot of batteries. These could not provide the power to operate the lock!! Supposed to have more power and its less. The charger is complete junk you have to wiggle and move the batteries to make a connection most of the time you cant use all of the slots stay away from this brand!! They dont even last in my flashlight I have better luck with nimh rechargeables

This is the ONLY battery that is able to handle a moded game boy pocket. Mine had the dot matrix display, replaced with a LCD, (the funny playing brand) + Ever Drive You name it, I try it, there was not one battery that worked. Researchable or non-researchable, name brands and cheep battery, none was able to keep up. The would give about 30 minutes more or less, and the GBP will glitch out, and the screen will go black or show weird bars on it. This will allow me to play for several hours with no issue. Now, without notice, the GBP will shut down, I believe this is when you get to the cut-off voltage of the battery. So there is no "heads-up" the device is about to shut-down. But again, I am amazed at the results, nothing comes even close.

Tried using regular AAA alkaline batteries but they die too quick. Tried using 'normal' NiMH rechargeable batteries but the voltage was too low These are the only rechargeable batteries I could find that work and also hold a decent charge for more than just a few uses. Expensive though.

I have been using both the AA version and now the AAA version of these batteries for over a year and they constantly amaze me with how long they last without needing to be recharged and how great they are at holding a true 1.5 volts all the way to the end before needing to be recharged. I know that the upfront cost is a bit high but if you use some batteries regularly, these batteries will pay for themselves many times over and you are helping the environment in the process.

Meine anfängliche Sorge, dass die kleine Bauform in Kombination mit Lithium-Ionen Akku vielleicht eine Brandgefahr ergeben könnte, hat sich nicht bestätigt. Das Aufladen geht mit ca. 1,5 Stunden nicht direkt schnell - ist aber in Ordnung. Es wurden schon sehr viele Batterien eingespart und - durch die konstanten 1,5V bis zum leeren Akku - sind die LED-Leuchtmittel, in denen ich diese einsetze, durchgängig deutlich heller als mit normalen 1,5V Batterien oder gar 1,2V Akkus. Klare Kaufempfehlung. Einzig der Preis ist sehr stolz und schade, dass der Kauf nicht etwas günstiger auch ohne die Ladeschale möglich ist.

Prodotto di altissima qualità che giustifica il prezzo

Item works as advertised and expected. 1.5v constant. Recommended. I just wish I could buy extra batteries without the charger.

habe die akkus in einer stirnlampe verwendet nach einer halben stunde war es finster. ganz einfache batterien halten stundenlang

Comprato sia la versione AA che AAA . Imballaggio impeccabile. Qualità carica medio alto.