当涉及到照顾我们笔记本电脑中的电池时,有时可能会有点小技巧,比如我们应该允许充电和放电水平有多高和多低。有鉴于此,今天的超级用户问答帖子回答了一位关心此事的读者的问题。
今天的问答环节是由SuperUser提供的,SuperUser是Stack Exchange的一个分支,是一个由社区驱动的问答网站分组。
超级用户读者Aalok想知道如何管理充电周期以延长笔记本电脑电池的寿命:
My laptop is used throughout the day for various types of work. I start after breakfast and continue working until about 9 p.m., when I take a break for dinner, then I continue to work for another hour or two afterwards. During these long days, my laptop’s battery discharges at least a couple of times.
What I currently do is plug it in to start recharging whenever the battery drops below 25 percent and keep it plugged in until it fully recharges to 100 percent. This is usually repeated three times each day.
Lately though, I have grown more concerned about this and each time I plug it in to recharge, I worry that I am actually causing damage rather than helping to preserve (extend) the battery’s life (c***idering that I c***tantly sit next to a power source, but make the battery work hard all day).
Is there any way that I can optimize my current recharging “methods” to extend the general durability and endurance of my laptop’s battery?
如何管理充电周期以延长笔记本电脑电池的寿命?
超级用户贡献者Ravexina为我们提供了答案:
Batteries have a finite life and there are many different aspects involved, however, the one we are concerned about here is cycle life.
Source: What is the Meaning of a Battery’s “Cycle Life”? [Electrical Engineering Stack Exchange]
In other words:
Source: Charge Cycle [Wikipedia]
What you are doing is repeating this cycle over and over, thus decreasing your laptop battery’s life. Remember that you should not let your laptop’s battery be repeatedly charged to 100 percent of its capacity or fully discharged to 0 percent. So the best thing to do is control the charging process.
Based on your laptop’s brand, there might be different tools available to you. For example, if you have a Lenovo ThinkPad, you can use tlp to easily manage this process. It has multiple configuration settings that allows you to control the battery’s charge thresholds. For example:
Source: ThinkPad Battery Charge Thresholds [LinRunner]
This allows you to keep your laptop plugged in all the time while also controlling the charging process. Somewhere between 60-65 percent while you have your laptop plugged in is a safe range to go with.
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