how long the battery should be considered full charge?
how long the battery should be considered full charge
?
Members of the battery may have a generally very concerned about is how long the battery should be considered full charge? Many of my friends are worried that not enough time, the battery is low, and may shorten battery life; time is too long, they may damage the phone and battery. So what should be charged fully how long? Here to tell you a simple calculation:
Generally the size of the battery capacity indicated in the battery to milliamps as a unit, the greater the value the greater the capacity laptop battery ACER Laptop Battery .
For example: 1200mAh is that the battery capacity is 1200 mA. Meanwhile, Charger generally marked with the charge current, as in mA units.
In this way, the battery charging time can be simply calculated according to the following: the battery capacity divided by the charge current, multiplied by factor 1.2 (or 1.1), the time in hours. For example: the battery capacity of 1200 mA, the charging current of 600 mA, namely charge time (1200 mA / 600 mA) 1.2 = 2.4 hours, then use this battery charger to charge this time is 2.4 hours.
The above calculation does not apply to the new battery. In general, the new battery charging three times before, especially nickel-cadmium batteries and nickel metal hydride batteries, the standard charge in 15 hours (0.1C), in order to achieve maximum battery life. After reference to the above method may be the battery charging time. Battery memory effect is for the purposes of nickel-cadmium batteries, because the traditional sintering process is extremely negative, coarse grain cadmium, nickel-cadmium batteries if they are fully discharged before re-charging, easy grain cadmium accumulation Manifold Ershi the formation of secondary discharge the battery discharge platform.
This will save battery discharge platform and the next cycle will end as a discharge, although the capacity of the battery itself, the battery can discharge to the lower platform. The discharge process in the future will only remember the low battery capacity. The same in every use, any of incomplete will deepen the effect of discharge, the battery capacity becomes lower.
To eliminate this effect, there are two ways, one using a small current depth of discharge (such as the use of up to 0.1C 0V) First use of high current discharge (such as 1C) several times. What kind of batteries stored in better conditions?
According to IEC standard requirements, the battery should be at a temperature of 20 +-5O C, humidity (65 - +20)% under the conditions of storage. In general, the battery storage temperature is higher, the lower the rate of surplus capacity. On the contrary, is the same. Refrigerator temperature is 0-10O C when the storage battery of the best places, especially for a battery. The secondary battery even after the loss of storage capacity, but as long as the re-charge and discharge times can resume.
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