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Fitting section Battery project--Battery

 LOFT生活 2012-09-27

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Type of battery
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[Time]
    Dry cell; alkaline batteries; the mercury battery; zinc-air battery; hydroxide battery
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[Reusable]
    Two kinds of lead-acid batteries and alkaline batteries.
    Nickel-metal hydride battery; nickel-iron battery; nickel-cadmium batteries; lead-acid batteries; lithium battery; solar cells
    Currently used nickel-cadmium (NiCd), nickel metal hydride (NiMH) and lithium ion (Li-Ion) batteries are alkaline batteries.
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[Necessary to add fuel use
    Fuel cell
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Camera selection]
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Generally chosen
A cylindrical cell of 1.2 1.5V
2 single square 3.7V lithium-ion battery
3 older digital cameras typically AA batteries or AAA batteries
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1. Alkaline batteries
       Use a good quality alkaline batteries. Alkaline batteries are cheap, and power and more robust than the nickel-metal hydride batteries, even in the process of using the battery runs out, it can be easily purchased in the small shops everywhere.
 
2 most digital camera battery for lithium-ion batteries.
    Lithium-ion battery is easy to use, no longer need to worry about buying batteries; convenient travel charging, with a universal charger can be used with mobile phones.
    With the development of technology, the capacity of the lithium-ion battery is a higher capacity than before.
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[Fallacious]
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Early nickel-cadmium batteries
1,12-14 origin of the hour
       The first generation of nickel-cadmium batteries, small rate charge is generally recommended charging current 1/10C, ??such as your battery capacity is 600mAh, 1C is 600mA, 1/10C is 60mA. Therefore, the full charge can take more than 10 hours for nickel-cadmium batteries, small rate charge is good.
2, the current
       Mainstream phone basically lithium-ion battery away from us the impression should be 3210, with nickel-metal hydride battery is around us, as if unable to find a cell phone with a nickel-metal hydride battery.
       Digital camera nickel-metal hydride and lithium-ion battery is half and half.
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Lithium ion battery
3, a lithium ion battery knowledge
       We only said capacity on the one hand.
       Two detection methods to measure the capacity of a lithium-ion battery: 1C charge, 0.2C discharge; 0.2C charge, 0.2C discharge, regardless of what charging standard should be standard. 1C rate charge lithium-ion battery is different from the previous nickel-cadmium batteries, can usually acceptable, but also must be accepted.
       A 600mAh battery charging 1C, about 1 hour, fully charged, and if the phone direct charge is designed so (many of which are 0.5C-0.8C) ,12-14 hours is nonsense. (The concept of 1C, a capacity of the battery is 600mAh, 1C charging current is 600)
       Under the national standard of GB/T18287 2000, when a constant current charge to 4.2V, switch to constant pressure, and that the end-of-charge when the current drops to 0.01C.
       For example, the charging current is 0.5C, charging 600mAh battery charging current drops to 6mAh about two hours, and at this time has been fully charged.
       Why is reduced to 0.01C it? Already full, this is a reflection of the batteries.
       In fact, the nickel-metal hydride batteries, the national standards has already provided a high rate charge and discharge indicators, that is a short period of time can be filled.
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[Used]
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Battery charging
The characteristics of each different battery, users must be charged in accordance with the manufacturer's instructions indicated.
       Under the stand-by mode, the phone should consume battery, If you want to be fast charged advised to turn off the phone or remove the battery for charging.
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Fast charging
Some automated intelligent rapid charger when the indicator signal change, only the full 90%, the charger will automatically switch to slow charge the battery is fully charged.
       Best battery is fully charged after use, otherwise it will shorten the time.
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Battery memory effect
If the battery is a nickel-cadmium battery, the long-term is not completely charge, discharge, will leave marks in the battery, reducing battery capacity, this phenomenon is called battery memory effect.
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[Regularly eliminate memory]
The method is to fully discharge the battery, and then re-filled.
       Discharge discharger or charger with discharge function, also can use the phone the standby mode, such as to accelerate discharge lighting display and telephone keypad open.
       To ensure that the battery can be recharged, should be in accordance with the instructions of the manual control of the time, repeated charging and discharging two to three times.
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【Article is excerpted from: Baidu Encyclopedia】
【Network reprint / Just reference】
【Translation is by Goolge】

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