Technically, more or less all batteries can be recharged, However, the effect of charging them varies.
Rechargeable batteries (secondary cells) are deisgned to be recharged repeatedly without any adverse effects.
Whilst non-rechargeable batteris (primary cells) are not.
However, Alkaline, Zinc Cloride and some other primary cells, can be 'recharged'. However, due to the chemical reactions taking place inside, some parts of the battery may be dissolved away. For example, a Zinc Cloride Cell uses its outer metal casing as part of its chemical reaction. Therefore, over a period of time of charging and discharging the outer casing will eventually dissolve away.
Finally, charging a non-rechargeable battery can sometimes take more than 48hrs, mainly because the batteries do not like heat or pressures building up inside, and therefore require very small charging currents, sometimes below 20mA.
Therefore, making chargers for non-rechargeable batteries would not be suitable due to the nature of the battery, and the fact that the chargers would have to be more sohpisticated than today's NiCd and NiMh chargers.
A non-rechargable battery is sometimes called a "Primary battery". This type of battery is constructed with chemicals that generate electricity through a non-reversible chemical reaction. Once the chemical reaction is complete, the battery is 'dead'
In contrast, a rechargeable (or "Secondary") battery is composed of chemicals where electrical energy can be applied to the battery to alter its chemical state. This chemical state can then be reversed to extract electrical energy from the battery.
The economics of battery production are such that primary batteries are still in demand.
http://en.wikipedia.org/wiki/Battery_%28electricity%29
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