Doing something that upsets those chemicals can have dangerous consequences. Remember, a battery is a collection of chemicals that store energy. Extreme temperatures - hot or cold and especially for long periods of time - are not good for any type of battery. Storing a battery in the refrigerator or freezer is not only bad, but can be dangerous. Myth: Store batteries in the refrigeratorįalse. This is where I tell you that most batteries are self-calibrating, so it's still an unnecessary step. So why do manufacturers sometimes tell you to do it? Fully charging the battery before using a device is to kick-start what's known as a "calibration process," helping the device learn how that individual battery behaves. It doesn't hurt anything if you skip this step, either. To be fair, it doesn't hurt anything to fully charge a device's battery before using it. Myth: Always fully charge a device before its first useįalse. In other words, top off more often to prolong the battery life of your electronics, and stop letting your phone or laptop die every day. So what if you do follow this wrongheaded advice anyway? If you allow your battery-powered devices to go to "dead" each and every day, it will reduce the battery's effectiveness over time. This is why, when you hold the power button, the screen will turn on long enough to tell you to charge the battery. What you see as 0 percent or "dead" when your phone or laptop won't power on is the battery still sitting at somewhere around a 10 percent charge. Today, most batteries never truly fully discharge. Myth: You should always let the battery drain completelyįalse. Leaving it plugged in like this every single night can have an impact on the lifespan of the battery, but the act of leaving it plugged in isn't as damaging as some people make it out to be.Ĭomputer manufacturers often recommend you "exercise" your battery about every other month by letting it drain fully, then charging it back up. It does this long enough for the device to drain two or three percent, then it will climb back up to 100 percent. Most smartphone, laptop, accessory and AA or AAA chargers are smart enough to momentarily stop charging once the device is fully charged. This simply isn't true - not anymore, at least. Myth: Leaving your devices plugged will "overcharge" themįalse. Many people believe the limitations of nickel-based batteries that were prevalent in the early '90s still apply to the more modern lithium ion and lithium polymer technologies we use today. If your fans are continuously trying to mimic a Category 5 hurricane, it’s time to do some detective work.Battery technology may not have changed much in the last couple decades, but common knowledge is even worse. Don’t worry, the noise will pass-unless it doesn’t. If your PC is really pulling its weight on a current task, it may need a little extra air to cool down, resulting in a louder fan noise than you’re used to. The modern BIOS usually is able to regulate how fast and hard the fans spin to adjust to a temperature change. Too much heat, and you can kiss your stable PC good-bye. Consider such sounds music to your ears, because these PC parts help to maintain a reasonable temperature. The usual hum and whir that most people associate with the sound of a PC come from the case fans and coolers for the vital components. Back up your data immediately and get into the market for a new drive. The head that writes to the drive may have gone bad, and the drive could be near death. However, if you start to hear clicking noises, it’s time to be concerned. Be sure to defragment your hard drive regularly to minimize the space it has to jump. Whenever you access information from a hard drive or save to it, the mechanical platters inside spin up at insane speeds-between 5600 and 10,000 revolutions per minute-with a tiny magnetic head jumping all over the place.
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