All batteries wear out over time, but they don’t wear out at the same speed. You and someone else, given the same brand-new laptop on the same day, could have quite different battery life after two years—maybe as much as a 40 percent difference. It depends on charging levels, heat, how you store it, and avoiding the deadly zero-charge.
Let’s talk about how to maintain the battery.
一.Keep It Between 40 and 80 Percent Charge
If you use your laptop away from its charger quite often, try to keep it above 40 percent charge. When it’s time to recharge it, top it off to about 80 percent, if it has decent capacity and you can live with the uncertainty. Using it this way is the best and most obvious way to extend the longevity and charge capacity of your laptop. Unfortunately, it’s also the toughest to follow. This may not be practical for road warriors, the overscheduled, or those who suffer from charge anxiety. But if battery life is generally not a problem for you, or you usually have a charger handy, these are the ideal limits to stay inside. A battery charged to its extremes, from empty to full, can make that trip 300-500 times before burning out, the highly informative, if archaically organized, depot of battery tips and testing. A laptop battery charged to 80 percent might make it 850-1,500 cycles.
二.If You Leave It Plugged In, Don’t Let It Run Hot
Keeping your laptop plugged in regularly, with the battery charged to 100 percent, isn’t slowly killing it, despite what you may read. It’s only as bad as charging it once, to 100 percent, in the first place. Once the battery hits 100 percent, most modern laptops stop charging, and the power is diverted to the system instead.
The exception is if your laptop runs hot. This could be because you’re doing a lot of compiling, rendering, or other intensive work, or because it’s hot where the laptop is used, due to sunlight, exhaust, or other factors. When you combine a battery at maximum capacity with serious heat exposure, that’s when it starts taking damage and losing life.
三.Keep It Ventilated, Store It Somewhere Cool
Laptops are not good to keep on your lap. Because of their compact size and lack of large cooling fans, laptops can get quite hot, to the point of causing gradual skin burns, or “toasted skin syndrome.”
So keep the lid open for a while after the laptop runs hot, and keep it off your thighs, or pillows, or laptop desks that surround it with pillows. Take a look around the laptop, see where the vents are, and avoid blocking them.
When you’re not using your laptop, keep it someplace cool, away from sunlight or heating vents. If that’s how hot it is in the air, it’s certainly hotter inside.
四.Don’t Let It Get to Zero
Keeping your device between 40 and 80 percent is advisable, but letting it get to absolute zero is a small tragedy. It’s not just sitting at zero that hurts, but the full recharge, too.
Recommends draining your phone or laptop completely to calibrate the battery gauge. This is a very small hit to battery longevity, but it gives your device a better estimate of its battery life and percentage remaining over a very long time, and prevents unexpected shutdowns and false readings.
The above four points are suggestions for the maintenance of laptop batteries, I hope they can help you