All batteries have what is called "shelf life" That is the measure of how long the battery will keep a charge while sitting. Every battery will discharge over a period of time. It just depends upon the battery and the conditions of storage.
Batteries can discharge if they sit unused for a long time. They can store energy for only a certain amount of time before the energy dissipates. Other reasons can be that the connections are not clean and making solid contact.
the anode and cathode are reversed from when it is discharging
the cathode becomes heavier.
Most of the 4.0 and upward Android version does warn the need of a battery replacement after the current battery has had too many discharges.
sulfuric acid decreases
It actually depends on your usage as the more the battery is used , the quicker it discharges
A capacitor discharges over a period of time if there is resistance between its terminals, and instantaneously if the wires are just brought together. It's the same identical situation with a battery. When used to power a circuit with a reasonable rate of energy consumption, the battery lasts a while. But try laying a screwdriver across its terminals and THEN see how long it lasts.
Something causes a slow drain on your battery. As it does, your battery slowly discharges. If you know that your car will be not used for several months, you might try disconnecting on of the battery terminals.
It won't hold a charge. It discharges quickly or discharges without a load. The case sides are bulging. The battery gets hot in patches or overgasses. The plates look white rather than grey. If it is an opaque case battery, the lower half is whiter and less opaque. A post is loose.
It looses data. That is why, it should always be backed up in your PC.
It does, but very slowly. It might take couple months before it discharges completely.
yes it is true. in the discharge process, water is produced, which dilutes the electrolyte, so reducing its gravity.
Yes, the Android 2.3.5 will warm you of the need to replace or charge your battery when the charge goes down.
The sulfuric acid in an automotive battery (the most common form of wet cell), is an electrolyte. As the battery discharges, the sulfuric acid reacts with the lead and lead oxide plates to form lead sulfate. When the battery is charging, the reaction is reversed.
A. M. Howatson has written: 'An Introduction to gas discharges' -- subject(s): Glow discharges, Electric discharges through gases