Eneloop Panasonic BQ-BS1E4SA D Size Battery Adapters for Use with Ni-MH Rechargeable AA Battery Cells, 4 Pack

I bought these D Size Battery Spacers for use with my Eneloop AA batteries and these work great. I had previously bought a couple of lanterns and the one takes D batteries. I didn't mind that it took D batteries but the weight of 3 D batteries is more than 3 AA batteries and adds weight to an item that if you use it for camping you want to reduce the weight because you are carrying that item. Plus the D batteries I had originally installed were just throw away alkaline batteries. I always want to reduce waste so since I already had some AA Eneloop batteries, that I like a lot, I wanted to use them in my lantern and these spacers helped me do that. The lantern worked great with these batteries with no difference in function. They are so simple it amazes me that I had not used these before. The bottom unscrews and pops off and you just insert the AA Eneloop battery into the spacer correctly and seal it back up. They are now D cell sized but not D cell heavy plus when they run down I just have to recharge them. Now you can not recharge them within the D Cell spacers but they just unscrew and you take the AA battery out. I have not come across anything yet that will not run on the Eneloop AA battery inside or outside the D cell spacer but I rarely come across anything that uses D sized batteries. My Eneloop batteries are the Panasonic branded versions not the Sanyo so I can not comment on previous versions of Eneloop and the D sized spacers. So I would recommend these spacers for anyone who wants to reduce the weight of D cell battery operated devices as well as one who wants to reduce waste/cost of D cell batteries for those devices and also one who wants a rechargeable option that will last for years.

I have a large number of Eneloop Pro AA and AAA batteries, but received a lighted decoration at Christmas as a gift that required D batteries. Rather than buying disposable batteries, I got these adapters and they worked to perfection!

These are extremely well made! These are the best there is!

I have bought all sizes of this brand of batteries and highly recommend it. They hold the charge for a very long time are very sturdy and reliable.

Oh I read lots of review that complained these were too big or not shaped right, or not the right voltage or any number of wrong statements ... at least for my purposes. I did not want to buy big D-cell batteries and then have to throw them away adding to the world's garbage and toxic chemical problems any more than I have to. So I got these, and you just unscrew the bottom and pop a rechargeable AA inside and screw it back together. I put it in my LED flashlight and i cannot see any difference at all in the brightness of the light. Perhaps the batteries may lose their charge faster than non-rechargeable batteries, but that is why I have lots of rechargeables always ready to go. These are great. If I run into any problems with anything else I will be sure to come back and amend my review.

When I opened the package I had to ask myself, 'what did I buy?', but actually these gizmos are ingenious. They are nothing but an empty plastic case that holds a AA-sized battery, allowing you to run devices that take D-cells using AA batteries. While I wouldn't recommend these for high-drain devices like older desktop radios, for things like LED lanterns, flashlights, and other fairly low-drain electronics, these make sense. I use these, along with Eneloop AA cells, to run camping lanterns and a few emergency radios. When the AA cells in these cases run down, you can just drop in a freshly charged Ni-MH AA cell (Eneloop or similar), or in a pinch, use an alkaline AA cell.

I've got an old Maglite flashlight that I've owned since the 1970's. It uses 4 alkaline D cells. Over the years I've had to clean it out numerous times due to the batteries leaking. I was even debating just throwing it away. I looked at quite a few adapters, but most seemed to be really cheaply made. Enter the Eneloop Panasonic AA-D adapter. I replaced the incandescent bulb with an led and the alkaline batteries with the adapter and 4 lithium AA's. WOW, what a difference. First, this battery adapter is much better made than the competition. Second, the flashlight's a lot lighter. Third, there's no worrying about battery leakage. And finally with the led bulb, it's super bright. New life for an old flashlight.

I bought a pack of 4 of the D size to test, and then about 12 more of the same for different lanterns. They all work fine. My purpose is to be able to use AA batteries in an emergency in LED lanterns that are designed for D batteries. Using actual D batteries, either alkaline or rechargeable, will last longer. But AA batteries in any type are usually easier to find, and chargers for them are much easier to find. Eneloop rechargeable batteries are good, and these work with those and also Duracell AA batteries. The instructions say not to use alkalines, and I've read that they don't always work with the C adapters, but that brand works fine in the D adapters I have.

Ich weiss zwar nicht wieso es heutzutage noch Hersteller gibt die D Batterien in ihren Produkten einplanen, aber scheinbar ist mein Grillhersteller der Meinung, dass die Tastenbeleuchtung des Gagrills mit 4 (!) D Batterien gesteuert werden muss. LED?! Nun ja, dieses Produkt ist für mich der perfekte Workaround. Die Eneloops passen da genau rein und es reicht locker aus. Würde sie wieder kaufen

Caddy for aa battery ,screw end is slightly larger.

Li ho acquistati per poter usarli nella mia torcia MAG LITE con led e due batterie D. Questo perché ho un gran numero di batterie ricaricabili Ni-Mh formato AA sia della eneloop, a mio parere le migliori, che di altre marche. Grazie a questi ottimi adattatori la torcia risulta molto più leggera di prima, anche se per contro l’autonomia in ore di luce diminuisce rispetto a batterie D. Ma per il mio uso in ogni caso durano fin troppo a lungo

A fantastic idea. D cell batteries are really expensive. Using rechargeable AA cells in these cases saves money and saves constantly looking for new D cells. They show a great value and function the same way as D cells when loaded with AA batteries.

Gostei bastante do produto, o utilizei com pilhas recarregáveis de outra marca e deu certo! Nunca mais comprarei pilhas comuns, e muito menos grandes. Tenho a tempos pilhas recarregáveis AA Elgin que demoram muito pra descarregar, estou usando elas no adaptador. Super indico, tanto as pilhas quanto o adaptador!