When you place an AA battery into one of these D-spacers do they equal the power of an alkaline D battery?
1082224
If you use an alkaline AA battery then you still get 1.5v but you won't get the energy density of a D battery so it won't last as long under the same power draw (amperage). Some device have a large power draw to begin with and it can exceed the specifications for the AA cell. In that case, the AA cell appears, "weak". If you use rechargeable AA batteries you get even less time before you start running at voltages far less than 1.5v. Most rechargeables start at less than 1.5v to begin with.
1082225
No way, even if the D cell you are comparing it to is really just a sub-C cell in a D body. A true D-cell rechargeable has about 5 times the energy storage of a AA of the same technology. And forget about trying to use a AA alkaline to replace a D. Even the voltage difference is practically moot. Take a typical old flashlight, for instance. After a short while, the alkaline drops below 1.2v under load, while the NiMH maintains its voltage until it's nearly empty, meaning (for many applications) the rechargeable far outperforms the alkaline. And that's just on one charge.
1082226
No, its still an AA batter providing power. The spacer merely provides a method by which to hold the battery so its contacts will be in line with those of the device to be powered.
1082227
No they don't- but most products will work with AA instead. Maybe just not full power. When I place these in my baby's crib toy, for example, it works fine except for when I turn on all the bells and whistles (lights, music and movement) it doesn't function properly and either shuts off, or the music is out of tune, etc.
1082228
Rechargeable batteries are usually 1.2v, while alkaline are 1.5v. AA batteries hold a lower amount of energy reserves depending on what you buy (anywhere from 750 mAh to 2000 mAh). Alkaline D batteries hold a lot more, depending on the brand (up to 17,000 mAh that I have seen). The spacers would be less useful, or maybe even useless, for high energy usage, but work quite well with low energy use. I have a set so that I can use them in my lanterns during power outages, since I have a lot of AA rechargeable batteries for TV/AV remotes etc.. I don't want the bulk of lots of extra D cells.
1082229
No - so they DON'T WORK with things that need that amount of energy. I bought these spacers for emergency use during power outages when you typically discover you have no D batteries for flashlights. They do not work at all. Waste of money.
298339
The holder with batteries just clears at 2 3/8", but be aware that you can not store rechargeable AA batteries in this holder. I purchased this holder to store Powerex NiMH AA batteries along with 9V and AAA, and the AAs don't fit! (In reading the previous post, it says you need 2 1/2" if you are storing D batteries. I don't use size D batteries, if you do- you'd need more depth to clear.) Other than that, I do like the holder~
104441
You can't use regular alkaline AAs but you can use regular AA rechargeable batteries that are Nickel Metal-Hydrate. Duracell and Energizer sell those.And the unit comes with a cord to charge the batteries from a USB. Can't charge them with a wall outlet unless a cell phone charger that has USB is used.
1405709
It depends how you are using your batteries. If you are planning to use them as a drop-in replacement, then no. They are the same length but a lot thicker. They are the same voltage but higher capacity.
366657
Use 6 AA alkaline batteries only. If you use rechargeable batteries, the power of the rechargeable will not be sufficient.
416612
The previous answer is right. You insert a AA battery in them, and then use them like a D battery, but you have to buy the AA battery first, and I imagine that they don't last very long, since you are trying to use an AA battery to do a D battery's work. But, if you want a rechargeable replacement for a D battery, then this is your option.
284817
No. The large battery cover has a bulge to accommodate the battery. The original is a thinner battery. You might be able to use a thin piece of anything (foam) as a spacer if you use the original as a back-up.
1898794
No, it does not charge C or D batteries; it only charges AA and AAA. However, this kit comes with C and D spacers, which means that you can insert a AA battery into one of the spacers and then use it just like a C or D battery.
2135018
Not sure. My experience was not good. 30% of the alkaline batteries I tried to recharge leaked so I stopped. Plan to return item.
1061922
I just posted a review for the D cell spacers. I found them to be sub-par. Because you are inserting a AA battery into a C cell body you are stuck with the small negative electrical contact area of a AA cell which a device that normally takes C cells might not like. My mag light did not work with the D cell spacers for this very reason. I had to make my own electrical contact pads which was not the best solution.
160743
There are batteries available that, instead of actually being batteries, are just wired straight through so that they work as spacers in applications like yours. Obviously this is just a plain holder for 8 cells in series, but a combination of up to 8 AA batteries and AA spacers will give you the variable voltage you're after.
1382431
Yes. And I find I get better battery life with alkaline battery's rather than using the rechargeable battery's that they came with.
755887
The batteries included have a relatively low capacity, only 700mAh.The Microsoft Play & Charge includes a battery with double that capacity, 1400mAh.Your typical alkaline AAs have a capacity around 2400mAh, provided they're of decent quality.I've got some 2700mAh rechargeables, but they're more of a pain to take out and switch than disposables.I'm guessing that's the reason for the 3 bar reading, sorry for going overboard with the details. It's not something to worry about.
2028859
Yes you can. I am using Eneloop (low self-discharge) AA batteries inside size D plastic adapters (two AA batteries per one D adapter) and it works fine. The only inconvenience is that to charge the batteries I have to remove them out of the adapters. There do exist size D rechargeable batteries as well but I need batteries that can hold their charge even when they are not being used.
1490397
2x AA/LRG Alkaline Batteries (Ni-MH and Lithium batteries can also be used)
710290
No, a AA batterie is around 14mm in diameter, these are 18mm, Also the AA is around 50mm long, these are 65mm.If you're looking for a L-ion battery that has the same dimensions as a AA, you want to find a 14500
2158737
Hi Joe,These rechargeable AAA sized batteries are the same size as regular Alkaline AAA batteries.