AA 1.5V Batteries: Where to Buy & Equipment Compatibility with 1.2V Rechargeable Cells

are there AA 1.5V batteries?
where can you get them?

or 1.2V is max.
resulting from the electrochemistry of the cell?

btw. why manufacturers of equipment that is supposed to run on rechargeable batteries do not adjust the electronics to a lower voltage, but insist on the battery voltage of 1.5V?

All available rechargeable batteries have this rated voltage because each cell has about 1.2V (hence 10 such cells in the battery). The charged AA rechargeable battery has about 1.35V, but the voltage drops quite quickly under load.

Probably this is due to the fact that each equipment is designed for the widest possible group of people, so under the voltage of ordinary batteries that are generally available in most stores, in total, in any place, while rechargeable batteries are more expensive, they require a charger that also costs and not everyone can buy it. allow it and not everyone pays off.
And what kind of equipment are we talking about now?
greetings

owert wrote:

And what kind of equipment are we talking about now?
greetings

it is about mp3 players, digital cameras,
discmany, cameras

they often do not have a mode switch 1.2V 1.5V (actually 2.4V 3V)

the problem is also that these are digital devices, not analog ones, and they turn off completely at a certain voltage level

this insufficient level is achieved fairly quickly
because this is the result of the battery discharge curve
other than with batteries


hence the question - is the mountain to Muhammad or Muhammad up

jareckixxi wrote:

it is about mp3 players, digital cameras,
discmany, cameras

Such equipment is designed for batteries (otherwise, instead of 2 AA batteries, we would have room for 3 rechargeable batteries and then a stabilizer).

Some devices still have these modes (but this is not a mechanical switch, but a power mode selection option in the device menu). I have a digital camera from 6 years ago and can choose whether to use batteries or rechargeable batteries - if you used rechargeable batteries and the battery mode was on, the device stopped working quickly, while when the battery mode was turned on, the device began to work for a very long time - the device was charged differently, according to a different curve, which saved energy. After all, alkaline batteries have different characteristics, and other Ni-mh batteries

There are probably 1.6V Ni-Zn batteries, but I do not know if you will get them in our beloved country, of course a special charger for this.

They are 1.5V. For example here:
http://www.allegro.pl/show_item.php?item=678946303
Admittedly, it is probably something like a rechargeable battery, but 100 times it's still good. And the price is only 4x higher than the battery.

pawel-foto wrote:

They are 1.5V. For example here:
http://www.allegro.pl/show_item.php?item=678946303
Admittedly, it is probably something like a rechargeable battery, but 100 times it's still good. And the price is only 4x higher than the battery.

thx

you can see that they are trying to meet customer demand


but they still need to work on the discharge curve

http://aphnetworks.com/review/pure_energy_xl/xlaa_tds.pdf
http://aphnetworks.com/reviews/pure_energy_xl
although they are already pretty good in the tests

These 1.5V alkaline perform well as long as they are not discharged over 60-70%, so not a very happy solution.
With excessive discharge, the service life drops x10 ....

How about this product? http://www.energizerbatteries.com/productdetail.asp?device=DIGCAM&prodcode=11692
I note that they are in the New products - Recherchable tabs

For several years I have been using:
- Alcava 1.5V AA / AAA
- EcoCell 1.5V AA
... and they work great where energy consumption is low (remote controls, etc.).

However, the charger (I have AK-4) for these batteries is also a curiosity.

For several years now, they have also been using it to charge ordinary AA / AAA batteries
(of course - at your own risk).

The effect is that for several years I have not bought a battery (I also have a lot of 1.2V batteries) and, for example, a used AAA battery fully charged (there is a LED indicator) can in the remote control and walk for 1/2 year.

Recently, I experienced another pleasant surprise - 2 AA 1.5V Energizers in my digital camera were used up (after several hundred photos), after charging I put it back in and took about 150 photos and they still work.

It is such a curiosity (and rather with a charger).

No curiosity, it has always been known that alkaline batteries can be recharged, and the more often and less they are discharged, the better and the more times they can be regenerated. Of course, we do not charge with any charger, only, for example, dedicated to rechargeable batteries.