How are rechargable battery recharged again?

Which physical quantities should I consider to estimate the time needed to make the battery full again? The electricity capacity (ampere-hour)

or the energy delivered to the battery.

electrical capacity. just think ampere-hours and not the amount of energy delivered. i think.

Ampere-hours is the number of hours a power source can supply a specified current.

 

So a battery capable of supply 1 amp-hour is able to supply a current of 1A for 1 hour.

http://science.howstuffworks.com/battery.htm

 

That may help you understand batteries better... if you understand how they work, it's not to hard to concieve them running backwards.

How are rechargable battery recharged again?

Which physical quantities should I consider to estimate the time needed to make the battery full again? The electricity capacity (ampere-hour)

or the energy delivered to the battery.

Oh maybe I should consider it more deeply .

Now my concept:

You have to overcome te voltage 1.5V "lost" of a used cell.

Current is determined by the potential difference,

and by P=VI, exactly current is affecting the power delivering back into the cell.

So amphere-hour or energy both can be used to find out the time.