Hi, this is Wayne again with a topic “Top 3 Battery Myths!”.
Hey, what’s up guys, it’s marquez from the mkbhd channel and i hope you’re enjoying your holiday break. I know i am, and i know a lot of you guys, including me – have gotten some battery-powered gifts, this holiday season, and this is a video to help you guys out who have been wondering about the batteries in these. I was actually doing some research on lithium-ion batteries, which is the rechargeable type of battery that you find in just about every mp3 player or phone or device out there, and to sum up my hours of research, i basically have three main myths that i can dispel Right now, myth number one is that you need to do a very long like overnight initial charge before you can use a lithium-ion battery-powered device for the first time. This is false.
Lithium-Ion batteries actually don’t require any sort of initial charge or priming is what they call it. So if your new ipod comes with 40 battery out the box, you can just start using it at 40 battery, don’t worry about any sort of overnight charge. Myth number two is that you should unplug a device as soon as it’s done charging, so you can avoid overcharging and diminishing the battery life.
This is one of the most common myths and i only recently figured out that this is actually also completely false. Lithium-Ion batteries are actually kind of smart in a way they have built-in circuits that cut power once the battery is fully charged. If you actually look at a battery charging chart, they charge really quickly to the first like 80 percent, and then they basically gradually fill in the last 20.
And if you look at it really really closely, it actually bounces off 100 a couple times so it’ll go from 100 to like 97 to 100 to 97 and that’s the battery rejecting the charge saying all right. We’Re done charging and then, when it gets down to 97, it’s like all right, i’ll accept a little more, but basically they never get overcharged. The only thing you have to worry about is overheating and that pretty much never happens unless you’re using it in a really hot environment.
So uh, you don’t have to worry about whipping it off the charger in the middle of the night, when it’s done charging myth. Number three is that you need to calibrate a lithium-ion battery, which is basically people draining their battery all the way down to zero percent. Then charging it all the way back up again to 100, while this is sometimes true uh and can sometimes work on certain devices where it has a battery memory, the battery itself doesn’t ever need to be calibrated.
It’S the phone software itself that sometimes has trouble. Reading the battery percentage left, so you may want to do this every year or so, but lithium-ion batteries have the same performance level from just about any percentage discharge. The reason these myths exist is because old battery technology was nickel.
Based these old nickel batteries needed to be calibrated and discharged from 100 to get their peak performance, which is well it’s old technology. Now, so, with all that plugging and unplugging, i just saved you, i think uh. You owe me a high five or or a thumbs up.
I don’t know whatever you want to do either way. This has been mkbhd and this entire video was filmed on a samsung galaxy nexus. Hope you guys are enjoying your holiday season and i’ll talk to you.
Guys in the next one peace you .