不断充电损害我的Android手机吗? -- battery 领域 和 battery-life 领域 和 charging 领域 android 相关 的问题

Does constant charging harm my Android cellphone?


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280
vote

问题

中文

我经常在充满电动局之后断开我的手机与充电器的连接,因为我担心电池可能会随着时间的推移而失去容量。然而,我相信现代电子器件应该能够处理这种场景,并自动停止充电电池一旦充满了。这适用于现代安卓手机吗?或者我需要继续将其断开连接吗?

英文原文

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics should be able to handle this kind of scenario and automatically stop charging the battery once it's full. Does this apply to modern Android phones? Or do I need to continue disconnecting it all the time?

        
   
   

回答列表

240
 
vote

作为NJD指出,大多数手机电池现在是锂离子。

虽然恒定的充电不能伤害,但它看起来像你可能想要一直在定期运行电池,以便数字电路可以正确校准

虽然锂离子在性能劣化方面没有内存,但具有燃料仪的电池展示了哪些工程师称为"数字存储器" 。随后再充电的短路不提供与电池充电状态同步燃油表所需的周期性校准。刻意的完全放电和充值每30个收费纠正此问题。让电池耗尽到设备中的截止点。如果被忽略,燃油计将越来越准确。

对于电池寿命,温度显然是一个因素 - 更热的环境,随着时间的推移越能越多。并将电池存放在100%充电中实际上是锂离子电池的不健康!

大量的锂离子电池使用提示这里: http://www.batteryuniversity.com/ parttwo-34.htm

  • 避免频繁的完全放电,因为这会在电池上施加额外的应变。具有频繁充电的几种部分放电比锂离子更好。充电部分电荷的锂离子不会造成伤害,因为没有记忆。 (在这方面,锂离子与镍基电池的不同。)笔记本电脑中的短电池寿命主要引起热量而不是充电/放电模式。

  • 用燃油计(笔记本电脑)的电池,应通过每30次施用一次刻意的全卸电池来校准。在设备中运行包装的情况下。如果被忽略,燃油量纲将变得越来越不准确,并且在某些情况下在某些情况下过早切断设备。

  • 保持锂离子电池冷却。避免热门车。对于长时间的储存,将电池保持在40%的充电水平。

  • 在固定电源上运行时,请考虑从笔记本电脑中取出电池。 (一些笔记本电脑制造商关注电池外壳内积聚的灰尘和水分。)

  • 避免购买备用锂离子电池供以后使用。观察制造日期。即使以清仓价格出售,也不购买旧股票。

  • 如果您有备用锂离子电池,请使用一个充分,并通过将其放入冰箱中保持另一个冷却。不要冻结电池。为获得最佳效果,请将电池储存在40%的充电状态。

 

As njd pointed out, most cell phone batteries are Lithium Ion now.

Although constant charging cannot hurt, it looks like you may want to periodically run the battery all the way down so the digital circuits can correctly calibrate:

Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.

As for battery life, temperature is apparently a factor -- the hotter the environment, the more capacity loss over time. And storing the battery at 100% charge is actually unhealthy for Lithium Ion batteries!

Great set of Lithium Ion battery use tips here: http://www.batteryuniversity.com/parttwo-34.htm

  • Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.

  • Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.

  • Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.

  • Consider removing the battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)

  • Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.

  • If you have a spare lithium-ion battery, use one to the fullest and keep the other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.

 
 
         
         
61
 
vote

现代手机所有使用锂离子电池,最常用的是频繁的充值电荷。

它们具有电路监控输入电压并防止过充电。

一些充电器在连接到电源供应时得到非常温暖,这只是浪费的能量;因此,您可能希望将手机充满电,但如果您在几个小时更长时间离开电池,电池将不会损坏电池。

 

Modern cell-phones all use lithium-ion batteries, which work best with frequent top-up charges.

They have circuitry to monitor the input voltage and prevent over-charging.

Some chargers get quite warm while connected to the mains supply, and that's just wasted energy; so you might want to disconnect the charger from the mains once your cellphone is fully charged, but there will be no damage to the battery if you leave it charging a few hours longer.

 
 
15
 
vote

所有设备都应该停止充电。但是,根据制造商,当电荷降至80-90%时,它们可能会开始充电。

如果我的权利,大多数电池应该被评定在发生严重退化之前约1000个电荷周期。如果您在晚上向电话收取电话,在汽车和工作中的工作大约一年。之后,您可能会购买另一个电池,因为它们非常便宜。只是处理电池环境友好。

 

All devices should stop charging once they're full. However, they might start recharging when the charge drops down to 80-90% depending on the manufacturer.

If I'm rights most batteries should be rated for about 1000 charge cycles before serious degradation occurs. If you charge the phone at night, in the car and at work that would be about one year. After that you might as well buy another battery since they are getting really cheap. Just dispose of the battery environment friendly.

 
 
 
 
9
 
vote

手机我有(OpenMoko Freeerunner)专门在文件中的愉快地生活在充电器中;它是在2006年左右的。

如果您的手机的充电电路足够复杂,它应该能够滴空充电,而不是电池的情况不足或不足。

 

The phone I have (OpenMoko FreeRunner) specifically states in the documentation that it will live happily on the charger; it was made in 2006 or so.

If your phone's charging circuits are sophisticated enough it should be able to trickle charge and not overcharge or poorly condition the battery.

 
 
 
 
9
 
vote

这里是电气工程,我们的姐妹网站的真实专家答案:

智能手机始终连接的影响到交流电源?

没有直接相关,也是一个很好的阅读:
欺骗被认为有害的充电电路

TL; DR:充电电路安全地设计成连接到充电电路24/7。

 

Here are the real expert answers from Electrical Engineering, our sister site:

Effects of smartphones always connected to AC power?

Not directly related, but also a nice read:
Tricking the charging circuit considered harmful

TL;DR: The charging circuit is safely engineered to be connected to the charging circuit 24/7.

 
 
4
 
vote

现代电子器件不会过充电电池,手机应能够持续插入。 然而,在高压充电状态下保持电池和高电压的电荷将增加电池劣化。这是最好的电池,当手机全部充电时最短。

我的个人经历是我的Android手机SGS1处理过夜充电,所以对此担心这一点并不明智,但如果你的电池永远不会持续一下。

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

一些便携式设备坐在接通位置的充电托架中。这 通过该设备绘制的电流称为寄生载荷和罐头 扭曲充电周期。电池制造商建议 寄生负荷,同时充电,因为它会引起迷你循环,但这 不能总是避免;连接到交流主的笔记本电脑是这样的 案子。电池被充电至4.20V /电池,然后放电 通过设备。电池的应力水平很高,因为 循环发生在4.20V /细胞阈值下。

用于操作准备或待机模式的充电器,通常让 电池电压降至4.00V /电池,并为仅4.05V /电池充电 而不是完整的4.20V / cell。这降低了电压相关的应力 并延长电池寿命。

为了最小化应力,请将锂离子电池保持在4.20V /细胞 尽可能短的峰值电压。

http://batteryuniversity.com/learn/artice/how_to_prolong_lithium_based_batteries

大多数Li-离子充电至4.20V / Cell和每次减少 将0.10V / Cell被称为双循环寿命。

 

Modern electronics will not overcharge battery, and phone should be able to handle being constantly plugged in. However keeping battery constantly in high state of charge and charge cycling in high voltage will increase battery degradation. It's best for battery when phone is minimal time in full charge.

My personal experience is that my android phone SGS1 handled overnight charging all well so it's not wise to get too worried about this, but if your battery never last long keep eye on that.

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

Some portable devices sit in a charge cradle in the on position. The current drawn through the device is called the parasitic load and can distort the charge cycle. Battery manufacturers advise against parasitic load while charging because it induces mini-cycles, but this cannot always be avoided; a laptop connected to the AC main is such a case. The battery is being charged to 4.20V/cell and then discharged by the device. The stress level on the battery is high because the cycles occur at the 4.20V/cell threshold.

Chargers made for operational readiness, or standby mode, often let the battery voltage drop to 4.00V/cell and recharge to only 4.05V/cell instead of the full 4.20V/cell. This reduces voltage-related stress and prolongs battery life.

To minimize stress, keep the lithium-ion battery at the 4.20V/cell peak voltage as short a time as possible.

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Most Li-ions are charged to 4.20V/cell and every reduction of 0.10V/cell is said to double cycle life.

 
 

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