当电池充满电但仍然连接时会发生什么？这里的问题取决于我们正在谈论的电池类型。由于大多数设备现在都有锂离子(Lithium-ion)和锂聚合物(Lithium-polymer)电池，我们将把它放在上下文中。也就是说，让我们退后一步。如果过度充电，任何电池都会发热或炸毁或失去容量。但是，技术已经足够先进，可以避免。在这篇文章中，我将分享当电池充满电但仍处于连接状态时会发生什么。它适用于笔记本电脑、手机和充电电池。
当电池充满电但仍然连接时会发生什么？
我们中的许多人在夜间将手机和笔记本电脑充电。它确保它在您起床时处于黄金时段。然而，许多人担心它是否会爆炸或过热，因为充满电通常需要 2-3 小时。这是交易。OEM 已确保这些电池即使存放很长时间也不会过度充电。
保护电路
从技术上讲，这些天电池不会过度充电，这要感谢 OEM 实施的内部保护功能。(internal protection feature.)一旦电池达到 100% 标记，内部电路就会断开电源(internal circuit disconnects the power source)，使其不再发送任何其他电流。电源电路设计用于检测上限，并在达到上限时切断电源连接。
因此，一旦电池最终充电，它就会停止接收充电能量。该电路将电流直接旁路到笔记本电脑的电源系统。它打破了电池始终为笔记本电脑供电的笔记本电脑电池神话之一。
可充电电池
如果是可充电电池，则完全取决于OEM。虽然它的工作原理相同，但请与OEM核实他们是否在充电完成时提供断路器。
大多数手机和笔记本电脑都带有此功能，但请务必与您的OEM确认。
你应该一直让笔记本电脑插上电源吗？
对此没有直接的答案。每个 OEM 都有自己的建议。如果您一直保持充电状态，一些原始设备制造商(OEMs)是可以的，而有些原始设备制造商建议您不时给电池放电。它使电池保持正常工作。
也就是说，这是您需要考虑的另一个因素。如果你住在温度高的地方，最好不时拔掉电源，只有在电池百分比低于一定百分比时才插入。高温通常会降低电池容量。
插入时取出笔记本电脑(Laptop)电池更好吗？
这不是一个好主意，因为如果电源出现故障，您将失去工作。然而，许多人遵循这种模式，认为随着使用量的减少，它会增加电池寿命。也就是说，内部热量是影响电池寿命的重要因素之一。
将笔记本电脑用于不加热电脑的临时工作时，请将电池放在笔记本电脑插座中。如果您正在做剧烈的工作，会产生大量热量，并且持续时间较长，最好将其取出。
因此，这不仅与环境温度有关，还与内部温度有关。许多游戏笔记本电脑都提供冷却功能，可提高风扇速度(increases fan speed)和散热或降低CPU使用率等。对于某些笔记本电脑，这些冷却功能也可以手动打开。
提示(TIP)：查看这些适用于 Windows 10 的免费电池限制器软件(Battery Limiter software)。
过度放电如何影响电池寿命？
就像过度充电一样，过度放电是可怕的。如果长时间不给电池充电，它就会失去容量。电池(Battery)产生内阻，化学物质开始沉积。这会导致问题。
我希望这篇文章能够回答电池充满电但仍处于连接状态时会发生什么，以及有关充电和电池的其他问题。(I hope the post was able to answer on what happens when the battery is fully charged, but still connected, and other questions around charging and battery.)
What happens when battery is fully charged but still connected?
What happens when the battery is fully charged but still connected? The question here depends on the type of battery we are talking about. Since most of the devіces now have Lithіum-ion аnd Lithium-polymer batteries, we wіll take that into context. That said, let us take a step back. Any battery if ovеrcharged will heat up or blow up оr lose capacity. However, teсhnology has advancеd enough that it cаn be avoided. In this post, I will share what happens when the battery is fully charged but is still connected. Іt applies to laptops, mobile phones, and rechargеable batterіes.
What happens when the battery is fully charged but still connected?
Many of us put our phones and laptop at charging during night. It makes sure that it’s up for the prime time when you get up. However, many feel worried if it will blow up or overheat as full charge usually takes 2-3 hours tops. Here is the deal. OEM’s have made sure that those batteries are not overcharged even if kept for long.
Protection Circuit
Technically, these days batteries don’t overcharge, thanks for OEM’s implementation of internal protection feature. As soon as the battery hits 100% mark, the internal circuit disconnects the power source from sending any other current. The power circuit is designed to detect the upper limit and will cut off the power connection when it reaches the limit.
So as soon as the battery is ultimately charged, it stops receiving charging energy. The circuit bypasses current directly to the power supply system of the laptop. It breaks one of the laptop battery myths that the battery always powers laptops.
Rechargeable batteries
In the case of rechargeable batteries, it entirely depends on the OEM. While it works on the same principles, check with the OEM if they offer a circuit breaker when the charge is complete.
Most of the mobile phones and laptops come with this feature, but still, make sure to check with your OEM.
Should you keep the laptop plugged in all the time?
There is no straight forward answer to this. Every OEM has its recommendation. Some OEMs are ok if you keep it on charge all the time, while some recommend you to discharge the battery from time to time. It keeps the battery functioning properly.
That said, here is another factor you need to consider. If you live at a place where the temperature is high, it’s a good idea to unplug from time to time, plug it only when the battery percentage falls below a certain percentage. The high temperature usually reduces battery capacity.
Is it better to remove Laptop battery when plugged in?
It’s not a good idea because if the power fails, you will lose your work. However, many follow this pattern thinking it will increase battery life as the use will be less. That said, internal heat is one of the significant factors which impacts battery life.
When using the laptop for casual work which doesn’t heat the computer, keep the battery in the laptop socket. If you are doing intense work, which generates a lot of heat, and for a longer duration, it is best to take it out.
So it’s not just about the ambient temperature but also about internal temperature. A lot of gaming laptops offer a cooling feature which increases fan speed and bent out heat or lower CPU usage, etc. These colling features can also be turned on manually for some laptops.
TIP: Take a look at these free Battery Limiter software for Windows 10.
How does over-discharging impact battery life?
Just like overcharging, over-discharging is terrible. If you do not charge the battery for a long time, it loses its capacity. Battery develops internal resistance, and the chemicals start depositing. That causes problems.
I hope the post was able to answer on what happens when the battery is fully charged, but still connected, and other questions around charging and battery.
