New cell phone recharge takes 8 hours for the first time?
-Mobile phone battery-IT information New mobile phone charging takes 8 hours for the first time?

Q: new cell phone charging do you need full 8 hours for the first time, to activate the battery?

A: users purchased new phones, there appears to be a claim is to charge new phone requires for the first time with 8 consecutive hours, using this method to activate the battery. If at first you don't fill, then battery can no longer reach the rated capacity. Whether this is true?

"Activate the battery this phrase," do exist, however this only exists in the older nickel-cadmium batteries and nickel-metal hydride rechargeable batteries. For these batteries, there is a so-called "memory effect": in not charging fully discharged state, makes battery overcharging, a long time can cause hyperplasia of crystals on the plate and block the contact of electrolyte and electrode plate, the battery voltage drops, ran out of batteries to use soon.

Therefore, for these two types of battery, charging and discharging reduces voltage drop on a regular basis.

Of electronic devices, but for now, the Basic are already universal electronic battery lithium. Electrical batteries compared to NI-CD rechargeable lithium ion battery and a nickel-metal hydride rechargeable batteries, with small size, energy density, and other characteristics. During initialization of the lithium-ion battery production process has been completed. There is no "memory effect" of lithium-ion batteries should not exist through the "activate" to upgrade battery durability.

But throws up at the Apple store's Web site says "best a month make a full charging and discharging", that is, electricity from 1001 to 0 before charging, that is why? In fact, this is in order to calibrate the device internal battery indicator, in order to prevent has been fully charged, the phone continues to display 98% problem.

To sum up, if you've recently purchased a smart device, when charging for the first time in the equipment you do not need to be exhausted, even charge it again 8, in addition to no impact on battery, and now electronic devices that already has a full power stops automatically after charging function. Else but wasting my electricity bill, and the rest had no impact.

新手机第一次充电需要8小时？ - 手机,电池 - IT资讯
新手机第一次充电需要8小时？

问：新买的手机第一次充电是不是需要充满8小时，以激活电池？

答：在用户新购入手机之后，似乎有一种说法是第一次给新手机充电需要连续充满8个小时，通过这种方法激活电池。如果第一次不充满，那么以后电池的电量就再也无法达到额定容量了。那么这种说法是否正确呢？

“激活电池”这种说法确实存在，不过这种情况只存在于较早的镍镉充电电池和镍氢充电电池。对于这些电池来说，会有一种所谓的“记忆效应”：在不完全放电的状态下充电，容易使电池过度充电，时间长了会导致电极板上增生晶体，阻塞电解液与电极板的接触，造成电池的电压下降，让使用者产生电池很快就用完了的感觉。

因此，对于以上这两种电池来说，定期充放电可以减轻电压下降的现象。

不过对于现在的电子设备来说，基本都已经普及了锂电子电池。锂离子电子电池相比于镍镉充电电池和镍氢充电电池，具有体积小，能量密度大等特点。而锂离子的初始化过程在电池生产的过程中就已经完成了。因此没有“记忆效应”的锂离子电池不会再存在通过“激活”而提升电池耐用度的说法。

但是在苹果官网上赫然写着“一个月最好进行一次完整的充放电”，也就是将电量从100一直使用到0后再进行充电，这又是为什么呢？其实，这是为了校准设备内部的电量显示，以防止出现明明已经充满电，可是手机仍然显示98%的问题。

综上所述，如果你最近购买了一款智能设备，那么在第一次充电时无需先将设备中的余电耗尽，再连充上它8个钟头，除了不会对电池产生影响外，现在的电子设备都已经具有满电之后自动停止充电的功能。除了浪费家里的电费之外，其余没有任何影响。