关于手机电池的正确使用、充电频率以及如何确保电池的使用寿命最长，存在许多误解。不幸的是，简短的互联网搜索通常会带来大量不正确或误导性的信息。
那么，一夜之间给手机充电对电池有害吗？阅读这篇文章以了解真相。
给手机充电一夜(Phone Overnight Overload)会使电池(Battery)过载吗？
根据设备的不同，重要的是只为电池充电一段特定的时间，以避免过载和损坏电池。
然而，对于大多数现代设备（以及所有当前的手机电池），保护芯片会监控内部锂离子电池何时达到最大容量。发生这种情况时，充电会立即停止。所以你不能以这种方式使电池过载。
问题是，随着手机容量不断下降到 99%，充电器将再次启动并将其充电至 100%。这称为涓流充电，它不利于电池的使用寿命，我们将在下面介绍。
一夜之间(Overnight Start)给手机充电会引发火灾(Fire)吗？
很有可能，手机电池充电产生的热量不足以引发火灾。但是，大多数专家建议将手机放在开放、不易燃的空间中——以防万一。这意味着不要在一堆松散的纸或衣服下充电，绝对不要在枕头下充电。
如果您将手机窒息并让充电产生的热量大量积聚，您也可能会损坏手机的电池。不过，这并不意味着您应该将其冷却太多。
锂离子电池在极热或极冷的情况下都表现不佳，并且都可能损坏它。低于 32℉ (0℃) 或高于 158℉ (70℃) 的温度可能会降低您的锂离子电池的性能。
给我的手机充电一夜(My Phone Overnight Degrade)会降低电池(Battery)的性能吗？
最有可能的是，让手机充电会降低电池的性能。正如我们上面提到的，如果你让手机在一夜之间充电，你可能会做两件会损害电池寿命的事情之一。您要么让它连续数小时涓流充电，要么让它变得太热。
如果您需要在一夜之间为手机充电，则应遵循以下提示以尽量减少任何潜在的损坏：
- 在坚硬、凉爽的表面上为手机充电，以免手机过热。避免(Avoid)将其放在枕头下（或任何会吸收热量的东西）。
- 充电前取下手机壳。
- 如果你一夜醒来，请拔掉手机。
- 坚持(Stick)使用手机制造商的官方充电器和充电器电缆。这些是专为您的手机设计的，不太可能出现可能损坏电池或导致充电缓慢(slow charging)的故障。
- 如果您使用的是移动电源，请确保它是高质量的(make sure it’s high-quality)并且不太可能损坏您的电池。
我应该只在电量达到 0%时才给电池充电吗？(Recharge My Battery)
不会。让较新的锂离子电池达到 0% 容量实际上会损坏它们。随着时间的推移，电池会固有地失去容量——这就是它们的工作方式。
这个神话来自较旧的镍镉 ( NiCad ) 电池。如果你没有完全释放它们，它们会形成一种“记忆”，有效地减少它们的容量。
专家建议将锂离子电池保持在 30-80% 之间。理想情况下，您应该监控手机的电量并尝试将其保持在这些值之间。如果你稍微低于或高于它不是世界末日。
如何充分利用电池？
最简单的解决方案是仅在您可以监控电池时为其充电。这样，您可以坚持建议的 30-80% 左右的边距，并最大限度地延长其使用寿命。这意味着在睡前或醒来后为手机充满电，而不是让它整夜涓流充电。
另一种选择是投资一个“智能充电器”，您可以安排它在指定的小时数后关闭。这样一来，您就可以为手机充电一夜，而不必担心会耗尽其使用寿命。
如果您要在一夜之间充电，请尽量避免使用快速充电器，因为它们会随着时间的推移导致不必要的热量积聚，从而可能损坏您的电池。
如果您想了解有关电池的更多信息，请阅读我们的权威充电指南(read our definitive guide to charging)。
保持动力
在一夜之间为手机充电并不一定是个坏主意，具体取决于您的操作方式。但是，如果您不小心，可能会缩短电池的使用寿命，导致您比计划提前购买新手机。
不过，一般来说，手机电池无论如何也只能使用几年——即使采用最佳做法也是如此。所以，如果你偶尔需要为手机充电一夜，不用太担心。
Is Charging Your Phone Overnight a Bad Idea?
There are many myths surrounding the proper use of phone batteries, how often to charge them, and how to make sure you get the longest lifespan out of them. Unfortunately, a brief internet search often brings up рlenty of incorrect or misleading informаtion.
So, is charging your phone overnight bad for the battery? Read this article to learn the truth.
Can Charging Your Phone Overnight Overload the Battery?
Depending on the device, it can be important to only charge a battery for a specific amount of time to avoid overloading and ruining a battery.
However, with most modern devices (and all current mobile phone batteries), protection chips monitor when the internal lithium-ion battery hits full capacity. When this happens, charging is immediately stopped. So you can’t overload the battery in this way.
The problem is, as the phone keeps dropping back to 99% capacity, the charger will kick in again and recharge it to 100%. This is called trickle charging, and it’s not good for your battery’s lifespan, as we’ll cover below.
Will Charging Your Phone Overnight Start a Fire?
Most likely, the heat generated by charging your phone battery will not be enough to start a fire. However, most experts recommend leaving your phone in an open, non-combustible space – just in case. This means not charging it under a pile of loose paper or clothing and definitely not under your pillow.
If you smother your phone and allow the heat generated by charging to build up significantly, you can also damage your phone’s battery. This doesn’t mean you should cool it down too much, though.
Lithium-ion batteries don’t do well with either extreme heat or extreme cold, and either is likely to damage it. Temperatures below 32℉ (0℃) or above 158℉ (70℃) are liable to degrade your lithium-ion batteries.
Will Charging My Phone Overnight Degrade the Battery?
Most likely, leaving the phone charging will degrade the battery. As we’ve mentioned above, if you leave your phone on charge overnight, you’re likely to be doing one of two things that will damage the battery’s lifespan. You are either letting it trickle charge for hours on end and letting it get too hot.
If you need to charge your phone overnight, you should follow these tips to minimize any potential damage:
- Charge your phone on a hard, cool surface to avoid it overheating. Avoid placing it under your pillow (or anything that will trap heat).
- Remove your phone’s case before charging.
- Unplug your phone if you wake up overnight.
- Stick with your phone manufacturer’s official charger and charger cable. These are purpose-designed for your phone and are less likely to have faults that may damage your battery or cause slow charging.
- If you’re using a power bank, make sure it’s high-quality and isn’t likely to damage your battery.
Should I Only Recharge My Battery When It Reaches 0%?
No. Letting newer lithium-ion batteries reach 0% capacity can actually damage them. Batteries will inherently lose capacity over time – it’s just how they work.
This myth came from older nickel-cadmium (NiCad) batteries. These would develop a “memory” which effectively cut their capacity if you didn’t fully discharge them.
Experts recommend keeping lithium-ion batteries between 30-80%. Ideally, you should monitor your phone’s charge and try to keep it between these values. If you go a little under or over it isn’t the end of the world.
How Can You Get the Most Out of Your Batteries?
The easiest solution is to charge your battery only when you can monitor it. This way, you can stick to the recommended margins of around 30-80% and maximize its lifespan. This means fully charging your phone before bed or after you wake up, rather than letting it trickle charge all night long.
Another option is to invest in a “smart charger” which you can schedule to turn off after a specified number of hours. This way, you can charge your phone overnight with no worries of burning up its lifespan.
If you are charging overnight, try to avoid using fast chargers, as they can cause unnecessary heat build-up over time that may damage your battery.
If you want to learn more about batteries, read our definitive guide to charging.
Staying Powered Up
Charging your phone overnight isn’t necessarily a bad idea, depending on how you do it. But, if you aren’t careful, you could reduce the battery’s lifespan, leading you to buy a new phone earlier than you planned.
Generally, though, phone batteries will only last for a couple of years anyway – even with the best practice. So, if you occasionally need to charge your phone overnight, don’t worry about it too much.
