How come a BATTERY cannot be made to recharge itself? Can it??

Question

Is this scientifically/technologically possible to create:

AA batterys that have a function when they are low on energy to recharge the entire battery by the little energy it has left?

Answer 1

Look at a battery charge as water. You have two bowls connected by a hose. One is full of water, the other is at the same level and is empty. You open the hose and the water drains out of the bowl into the empty one until the levels are equal. A battery would be the same way. A fresh new battery would "charge" a dead one until they were both half charged.

Answer 2

First of all, I don't think that self rechargeable batteries are a good inversion for the battery industry since the consumers won't have the need to purchase more batteries whenever the energy of it goes out. That is why you don't see many commercials or other forms of advertising regarding rechargeable batteries. But... I once heard that if you want to reuse a battery that you should put it in the freezer for a few hours and then use it (It will not work as good as when you first got it but it will last for a while, depending on the brand of the battery).

Answer 3

No, but weird things are known to happen. Such as hitting the remote that has a dead battery and somehow still works. But anyways, back to the question. A battery stores electrical energy in chemical energy. The battery "dies" when its chemicals
(depends on battery type) depletes. Recharging a battery just rejuves the chemical energy within a battery. Also, energy is neither created nor destroyed. It is just transferred around.

Answer 4

The power or energy has to come from somewhere, ie from an external power source. once a battery runs out of power how can it recreate the energy from nowhere? its just not possible. if that where possible its like sayin a human could create its own energy without takin in any external food or water supplies.

Answer 5

Sorry ... that would violate some laws of physics. You cannot create or destroy energy so you can't take a small amount of energy and have it magically turn itself into more. Otherwise you'd have a perpetual motion machine.