TOP auch in Bezug auf das Preis- Leistungsverhältnis.

Gut

Hier geht es ja in erster Linie um die Batterien. Man bekommt hier acht Stück AAA Akkus. Aber keine herkömmlichen Ni-Cd oder Ni-Mh Akkus, wie man sie sonst so kennt. Hier bekommt man Litjium-Ionen Power. Und da Lithium-Ionen Akkus eine wesentlich höhere Energiedichte besitzen als NiCd oder NiMh, sind diese Akkus auch wesentlich ausdauernder. Li-Ion Akkus kennen weiterhin keinen Memoryeffekt und wegen der anderen Zellspannung habe sie auch die von Alkali-Batterien gewohnten 1,5V anstatt wie sonst bei herkömmlichen Akkus nur 1,2V. Bis hier hin also schon mal nur Vorteile gegenüber alten, herkömmlichen Akkus.Das mitgelieferte Ladegerät ist auch absolut schick gemacht und funktioniert auch einwandfrei. Einfach die Akkus rein, Deckel zu, per USB-C anstecken, und schon werden die Akkus geladen. Ein USB-A auf USB-C Kabel liegt dem Set bei. Ein passendes Steckernetzteil aber leider nicht.Vorteil dieses Systems ist natürlich, dass man das Ladegerät auch am PC, im Auto oder wo man sonst heute nicht alles einen USB Lader hat, anstecken kann. Man ist also nicht an das 220V Netz gebunden.Oben am Deckel unter einer Rauchglas Abdeckung (natürlich Plastik, kein echtes Glas) erglimmen nach dem Einstecken des Ladegeräts bis zu acht LED's (für jeden Akku eine), und zeigen an ob noch geladen wird, oder die Akkus schon voll sind. Und wenn man das Ladegerät einsteckt, laufen diese LED's erst mal als Lauflicht durch. Ist zwar völlig unsinnig, schaut aber wichtig aus 😉Zwei kleine Nachteile hat das Set aber dann schon. Zum einen kann man in diesem Ladegerät eben wirklich nur AAA Li-Ion Akkus laden. Keine anderen Akkus. Und zum anderen geht von Li-Ion Akkus natürlich immer eine gewisse Brandgefahr aus. Wie gut in diesen kleinen Akkus hier der Tiefentladeschutz integriert ist, kann ich nicht sagen. Darum lagere ich diese Akkus hier, genau wie alle meine anderen Li-Ionen Akkus auch, in einer speziellen, feuerfesten Akku-Tasche. Aber diese zwei Punkte sind absolut kein Grund für eine Abwertung des Sets. Daher bleibt es auch bei den vollen fünf Sternen.

This is not a Vine review: I bought the set of 8 imuto AAA batteries with the charger for $22 in Mar 2025.- charge the batteries when you receive them: mine arrived at about 40% charge. No big deal - just charge them when you get them.- the batteries can be charged in my XTAR VX4 and EBL C708S3L chargers in addition to the one in the kit.- the charger included with these batteries will **not** charge NiCD, NiMH, or my other rechargeable 1.5V Li-Ion cells - it's for these imuto cells only.I have several chargers that will charge 1.5V rechargeable Li-Ion cells (including these), so the included charger isn't much interest to me. That said, The charger's physical design is appealing but it has some aspects I don't like:- as mentioned above, the charger only works for these specific batteries (though the batteries can be charged in other chargers)- this charger only works for AAA batteries. Consider whether the imuto kit that has 4 AA and 4 AAA cells might make more sense- for some reason they put the USB-C power input on the lid so it ends up being a clunky thing that kinda gets in the way. It's not a deal killer, but I don't understand why they didn't put the input power jack near the bottomNow the good news - these AAA cells have a true capacity around 720 to 800 mAh (equivalent to 1080 to 1200 mWh). It seems that the capacity improves a bit (10-20 mAh) after a few charging cycles. Now you might think since imuto claims these cells have an 865 mAh/1300 mWh capacity that this means you are only getting 85% of the claimed capacity - and you'd be right.However in my limited experience, getting 720+ mAh from a rechargable AAA cell is pretty good. At the price these were when I bought, the cost per cell is $2.75 which is very good - and that's considering the charger as free. Other 1.5V rechargeable Li-Ion AAA cells I have from a better-known brand that claimed 800 mAh/1200 mWh capacity tested to only about 320-350 mAh capacity at a higher cost. Less than 50% of the capacity of the imutos for 20% more money.I think these cells are a good deal even if the true capacity is only 720+ mAh. I wish imuto - and all brands - were more accurate with their claims.Note that the listing has this buried in some small print (I think this applies to many 1.5V lithiums):"Please Note: The maximum discharge current of imuto 1.5V AAA lithium battery is 0.5A. Due to differences in circuit design, some high-power LED flashlights and LED headlights may cause the battery to work overload and cause abnormal heating. If your device has a high brightness/strong light mode, please pay attention to the high current requirements of the device. Long-term full current output and over-current output will cause abnormal battery heating."The bottom line from me is: this kit is a good value for the batteries alone especially when there's a deal active. But avoid using the batteries in high drain devices. Just an FYI - I bought a 2nd kit at the sale price.**Another update** (Apr 2025):I stumbled on a chart imuto has on another of their rechargeable battery listings (www.amazon.com/dp/B0DCHTZBT8) and I'm adding it to this review. The chart indicates that while the "cell energy" is 1300 mWh (which is what is advertised in the product listing), the "rated energy" is 1170 mWh and the "rated capacity" is 780 mAh. The "cell energy" is said to be the "actual total energy" (theoretical I guess) while the "rated" numbers are the "actual" energy or capacity of the cell.In the chart, imuto defines these values as:- Cell Energy: Actual total energy of the battery cell- Rated capacity: Actual discharge capacity- Rated Energy: The effective energy actually deliverable by a battery (typically 5%-15% energy retention is required in rechargeable batteries to ensure system safety and cycle life)Note that the "Rated" numbers stated by imuto in that chart match up with the numbers that came out of my testing.So you can believe those two columns of the chart. It seems that advertising the theoretical energy of a cell is very common in the battery universe, leaving it to consumers to figure out how much juice **you** will be able to get out of the cell. I wish the "rated" numbers were what all vendors would publish/advertise.I think that chart probably gives people the kind of capacity you can really expect from many other vendor's batteries, not just imuto, when they advertise a particular mWh number. I appreciate imuto providing this chart, though it took luck for me to stumble on it.

L’articolo è arrivato tre giorni prima del previsto, e ben imballato.Le ho acquistate dopo aver avuto una buona impressione delle IMUTO formato AA, da me acquistate pochi giorni prima.Le normali batterie agli ioni di litio forniscono una tensione di 3,7 V.Nel caso delle batterie al litio da 1,5 V è stato applicato un modulo di circuito integrato all’interno di ciascuna batteria che riduce la tensione a 1,5 V.Ho misurato la tensione di ciascuna batteria, appena arrivate, e i loro voltaggi andavano da circa 1,55 V a 1,58 V, ossia un po’ più alti delle altre mie IMUTO tipo AA, che vanno da 1,51 a 1,52 V.Queste batterie hanno molti vantaggi rispetto alle batterie usa e getta: Innanzitutto rispettano l'ambiente, oltre a far risparmiare nel tempo parecchi soldi.Le batterie usa e getta invece sono terribilmente dannose per l'ambiente e, attraverso di esso, per la nostra salute, poiché le molte sostanze tossiche che rilasciano non vengono rimosse dal corpo umano.Altro vantaggio di queste batterie al litio ricaricabili da 1,5 V è una tensione costante di 1,5 V. La loro tensione di scarica può essere semplicemente intesa come una linea retta orizzontale.Un piccolo rovescio della medaglia è che, avendo appunto una tensione costante di 1,5 V durante l’uso, la loro capacità è incontrollabile. Potrebbero sembrare cariche anche un attimo prima di scaricarsi. Quindi è preferibile averne una certa scorta sempre cariche e pronte all’uso.Si possono utilizzare in molti apparecchi che richiedono un consumo medio-alto.Questo formato di batterie è senz’altro, assieme alle AA, il più diffuso, e viene utilizzato in una moltitudine di apparecchi, dai telecomandi, agli orologi a muro, alle bilance da cucina, rasoi elettrici ecc. ecc.Per quanto riguarda le loro competitrici, ossia le batterie ricaricabili NI-MH, il problema più grosso di queste ultime è che la loro tensione è di soli 1,2 V, oltre ad avere una maggiore auto-scarica, un effetto memoria, e un minor numero di cicli di ricarica.Molti apparecchi non funzionano o funzionano male con una tensione così bassa.Ovviamente queste IMUTO le devo provare ancora bene nel tempo, ma la prima impressione è stata positiva, e sono sicuro che si tratta di un buon acquisto.Il costo può sembrare a prima vista un po’ alto, ma viene ammortizzato in breve tempo. Pertanto non posso che consigliarne l’acquisto.

Tolle Idee mit der Ladebox. Habe endlich meine Akkus gut sortiert. Lädt natürlich auch Akkus von anderen Firmen. Hab mir sofort zweite Box bestellt.

Gute Leistung . Besser als die Akkus mit 1,25 volt. Aufladen durch ladebox sehr leicht .6 led anzeigen für jedes Akku.Qualität find ich gut

Imuto have been making batteries / powerbanks since 2007 and are a pretty good brand in my opinion, they just aren't as well known (yet) in the west.What I like:+ The batteries' capacity rating seems accurate, the nominal capacity might even be higher than advertised. I used a USB power tester / meter, and assuming the 87% efficiency they claim is true, each battery has 1160mAh capacity, which is typical for good AAA-size batteries. However, each battery has an integrated circuit that does voltage regulation (the internal Lithium cell is 3.7V, but the battery outputs 1.5V), which also has some losses, but I doubt they are very significant.+ The case for the batteries doubles as a charger (USB-C port). It is able to balance batteries, meaning you can have fully and partially charged batteries in there at the same time, it will charge only the ones that are not full. There are handy LEDs on the top of the case, one above each battery. If it's blinking - the battery below it is charging. If it is solid - battery is full. The lid has a pretty strong magnet, but it certainly is not child safe.+ Good charging speed - it takes exactly 2h to fully charge a battery. It is able to charge all the batteries at the same time and that does not increase the charging time.What can be improved:- The battery maintains its 1.5V output throughout its whole capacity, so you cannot trust the battery level indicator on devices with these batteries in them. Standard AAA batteries start at 1.5V when full and gradually go down to about 1V as they get depleted. Devices using the batteries check the voltage to roughly figure out the current state of charge, which obviously is not going to work with batteries like these that keep a stable 1.5V from full to empty, the device will just suddenly go from thinking it has full battery to turning off due to no power. Some other lithium rechargeable batteries drop their voltage from 1.5 to 1.1V when they are near depletion to get around this issue, but unfortunately these do not do that, which is a problem in various scenarios.- The charging case relies on spring-loaded pins, and my experience with those on other products is not good... over time, the spring material deforms and the connection becomes poor or none at all, and that usually happens within an year or two. Maybe imuto used some extra-durable material, but considering how long lifespan lithium batteries have, especially if you put them in low power devices like remotes, they'll almost certainly outlive the usefulness of the case. That being said, you can charge them in 3rd party battery chargers.If you are wondering whether to go with NiMH or Lithium:* Typically the advantages of Lithium:* * Longer battery life at low power loads. The higher the load is, the worse the efficiency of the lithium battery is.* * Longer battery life - lasts more cycles.* * Lower discharge rate when sitting idle.* * 1.5V output, which is what devices expect, but that also causes that battery level caveat I mentioned earlier.* Typical advantages of NiMH:* * Higher power - they are more suited to devices that consume batteries quickly. Even if they have a lower rated capacity than a lithium battery, NiMH would likely last significantly longer in such scenario due to better efficiency.* * Their output voltage is related to the state of charge, which means battery indicators will function. That being said, there is the caveat that NiMH are at 1.5V, but very quickly drop to about 1.2V and stay around that for most of their state of charge. Some devices designed for non-rechargeable batteries consider ~1.2V to already be low enough to warn you about low battery, so NiMH will trigger that pretty quickly, despite it having plenty of charge left.Overall, this is a pretty good battery kit and it is almost perfect for low to medium power devices like remote controls, night lights, etc.

Alles in Ordnung auch alle Zellen konnten geladen werden, keine war defekt.

Die Kapazität ist ungenügend, die Akkus sind ruck zuck leer, an meinem Bewegungsmelder Licht mit LED.Teure Ausgabe für ein unbrauchbares Produkt.

Je suis très satisfait jusqu’à maintenant. Bien hâte de voir si la charge va être de longue durée. Ce qui est bien c’est que les piles arrivent chargées. J’ai aussi très apprécié le retour rapide du vendeur à une question que je lui avais posé. J’ai acheté ses 2 chargeurs AA et AAA. Je vous reviens après un mois d’utilisation afin de vous dire si je suis toujours satisfait. Reçu 8 avril 2025

Compact, esthétique, pratique, c'est un bon chargeur à un prix raisonnable

Tiene muy buena pinta. La caja sirve de cargador. Cada posicion tiene un led y se ve el proceso de carga individual de cada bateria. Habra que ver la duración de la carga. Si funcionan bien se acabara el problema de las baterias de otras tecnologias (cadmio o metalhidruro) en que el voltaje se queda en 1,2v