Rechargeable battery

From Free net encyclopedia

Rechargeable batteries are batteries that can be restored to full charge by the application of electrical energy. They come in many different designs using different chemistry. They are also called storage battery or secondary cell. Attempting to recharge non-rechargeable batteries may lead to a battery explosion. Some types of rechargeable batteries are susceptible to damage due to reverse charging if they are fully discharged; other types need to be fully discharged occasionally in order to maintain the capacity for deep discharge. There exist fully integrated battery chargers that optimize the charging current.

1 Energy to weight ratios
2 Recharging
3 See also
4 External links

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Energy to weight ratios

In the order of improving energy per weight ratios there are:

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Recharging

Image:Battery charger.JPG The energy used to recharge rechargeable batteries mostly comes from mains electricity using an adapter unit. Recharging from solar panels is also attractive. Recharging from the 12V battery of a car is also possible. Use of a hand generator is also possible, but it is not clear if such devices are commercially made.

For uses like radios and torches, rechargeable batteries may be replaced by clockwork mechanisms or dynamos.

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