Primary battery Once the battery is used, and cannot be brought back, recharging for re-use or are often referred to as the "coal". There are many types, such as alkaline. By, etc. This battery size. Energy storage used in clock radios, high service life is high, but when it is used becomes waste pollution.The secondary battery is a battery that can be reused when using back recharging for re-use, such as car batteries, battery, cell, and the new version of charcoal, etc.The battery is a mechanical battery that once used, recharging. By changing the polarity of the electrode negative pole of the battery is used, which allows for a quick recharge rechargeable batteries aluminum-air.The battery is a battery that has a fuel cell. Electrode by one side is the gas and the other is the polarity of the battery itself, such as the type of sync-Br.
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