12 Biggest Tech Myths You Hear All the Time


4. You Need To Run Down Your Battery All The Way At Least Once A Week

This myth also applies only to old batteries. Lithium-ion battery is only good for certain number of "cycles." Allowing your battery to drop to 10 percent and then recharging counts as one cycle. This wears on the battery, and reduces its durability.

The “memory effect”, or the need to “refresh” or “deep-cycle” the battery by completely discharging before recharging, is out of date knowledge from the time of NiCad and NiMH batteries. Lithium-ion batteries don’t suffer from the memory effect.

Also it is good to know that when plugged in, the battery is not in use. The laptop’s power circuitry bypasses the battery unless it’s needed. Lithium ion batteries have good energy density, but their particular charging behavior means they're more prone to be slightly damaged at the end of each charge. Lithium ion batteries can be killed faster by a bad charger than any other popular rechargeable technology.