Rechargeable Lithium ion batteries are everywhere – Electronics, tablets, laptops, cars and pretty much every single cell phone. And most of the time, these lithium batteries are incredibly safe. As long as the lithium fail-safes are in place. Fail-safes… that work. Samsung just, voluntarily, recalled an estimated 2 million Galaxy Note 7's as a safety precaution. Since some of the batteries are exploding inside the phone. Obviously, random explosions are not a feature that most people look for when purchasing a cell phone. So lets take a look at the Note 7 and assess why it might spontaneously combust. During charging, the phone is protected by multiple fail-safes.
First off you have the part the plugs into the wall; the charger, and the cable. If the charger is faulty, or not designed specifically for the phone, it can effect the safety of the battery. It can destroy the battery's protection circuit which ill show you in a second. The charging port is also a fail-safe as well. It tries to do its best to protect the phone and the battery from faulty chargers and incorrect electrical flow. BUT as a last resort, the battery also has its own fail-safe built in.
Here is where the battery plugs into the mother board to receive its juice and supply the phone power. Then we have this circuit board; also called the protection circuit, at the top of the battery. This controls the flow of electricity AND the temperature of the lithium. All lithium batteries should have a variation of this board. It makes sure that the battery does not over charge, and it has a thermal fuse of sorts will blow if the temperature gets too hot, thus protecting the lithium inside from rapid unplanned catastrophic dis-assembly. The body of the battery is typically two layers. The Anode and the cathode, which are separated by an electrically conducting fluid. This is oily and smells surprisingly of burnt skittles. The combination of these elements allow your phone to charge and function as long as the battery protection circuitry is working correctly and the electricity and temperature of the lithium are regulated.
If it is not regulated correctly during charging, the lithium will react violently. So if we look at one of the exploded phones… we can easily see which of the fail-safes… is failing at being safe. The charging port sits here inside of the phone. There are no burn marks near the port, OR where the port connects to the motherboard. BUT we do see some scorching where the battery sits. Not where it plugs into the main board which would be about here. But it explodes in the center of the battery. Around the battery hole in the thick aluminum midframe. So on this particular exploded Note 7, all of the connections are good, its just the battery itself isn't behaving. Tesla cars are also powered by lithium batteries, and the Model S had a small issue at the beginning of production where the batteries on the undercarriage could get punctured by derbies on the road… which could cause the lithium battery under the car to explode.
Tesla corrected this problem by adding a titanium puncture proof under-plate to the Model S. The Note 7 batteries are definitely not being punctured internally. Since there is nothing to poke them on the inside as you can see from my teardown video. It sits on smooth aluminum. So since the Note 7 battery isn't being punctured… that narrows us down to overcharging, shorting, or impurities in the battery itself. A small metal impurity in the lithium could short it out. Personally, I think the problem has to do with the little circuit board failing at the top of the battery during charging. From what I have read about the people who have complained publicly about their Note 7 exploding, the phone was charging when it happened.
The phone starts charging… the tiny regulator doesn't do its job and the battery enters into a thermal runaway and the voltage regulator cant stop the chain reaction. Since this particular Note 7 battery isn't plugged into the phone right now, my tweezers are acting as the other possible failure point; a metal impurity in the manufacturing of the battery; That could possibly short out the battery. All of this smoke and fire would be under extreme pressure locked inside of your water tight Note 7, the more pressure there is.. the bigger the explosion. Remember this only happens on a VERY SMALL number of devices. So far its only happened on 35 phones out of 2 million.
So, ya definitely take advantage of the recall, but also feel free to use your phone as normal in the meantime…. just don't set it on your lap while its plugged into the wall…. and maybe take a fire extinguisher with you to bed… just in case. My Instagram followers saw the results of this combustion before the video was posted to YouTube, So follow me there, if you want to stay updated on my future projects.
Subscribing to my YouTube channel is always free. I review technology from the inside. Thanks for watching! Hope to see you around..
Oh welcome to dad does and today we are looking at the jitterbug touch to smart phone from great call now here's the phone it is not the most high-tech of smart phones in an age where the Apple 5s has just come out and Samsung and Apple are battling it out for the most high-tech smartphone you might be wondering why are we looking at this jitterbug touch too well we want to go over some of the features and what we think is really neat about it and the specific audience they're going after all right to give some comparison so you understand who the jitterbug touch to is for here is iPhone 5 a very high tech phone as we know Apple Samsung battling it out for the best smartphone right next to it we have the jitterbug touch too doesn't look bad next to it but as you see a big difference on the home screen in terms of the apps on iPhone you've got all these apps tons of different features all types of cool stuff that's great for a younger people who like all that now we're going to take this out of here I'm going to bring the jitterbug into the middle of the screen but look at the difference here this is very simple if you want to access your phone it's right here text messages right here everything is a simple click away and that's really who this jitterbug touched to is geared for this would be for grandparents maybe people who are getting their first smartphone and are looking for something which is a little bit easier to use but still has it functionality so they can visit websites and do the cool stuff you do with smart phones alright in this review we're not going to go for all the features of the phone just not time for that but we want to do is highlight what makes this phone special why someone who is maybe not as inclined to use a smart phone or is a little harder time scene would like this phones we're going to go to phone right now I want to show you here is the keypad as you see it's large look at the large call button now I know for our younger audience you might say well that's silly I have no problem in the call button but as your eyes get a little bit older and it's a little harder to see simple things like this having a large keypad very easy to dial and a huge call button makes a difference so we think that is great for seniors we're going to go back to the menu here and look at some other features here which we think are nice it's got a camera in it and of all the specs over on dad does in terms of the camera nothing that special but is a 5 megapixel camera but let's go over the big thing here because this is from great call their apps here the 5 star urgent care and med coach let's go into the 5 star app right here and that's where you start to see the real difference of this phone as to other smartphones the idea here is is that someone who is a senior has some problems needs immediate help look at this giant red button you tap that button it calls five start game up all the information over on the website but they can get immediate help – you got GPS location obviously on the phone and the other neat thing about it I'm going to go to the main menu here is you input a full profile so you can have your meds in there your doctor emergency contact how to access your apartment if you have a key hidden under met all that information right here under my profile and then when you hit that big red button you call them if you have a problem if you're unable to talk have some serious medical condition they can access all that from your profile so this is where the phone really comes out strong is this five star response and again we'll have more over on the site all right the next one which I think seniors are really going to like is this urgent care this is great for parents for anyone and what it has here another great call a pin it is if you need to speak to a nurse or a doctor click a button but what's cool is let's say you want to look up symptoms you have something going on you want to know I wonder if it's serious or not you have a pain in your head you can search by keyword search by body area so you can say okay let's click on the head here and now it's going to come up with some different things and basically question and answers to take you through what might be wrong and then you can decide is this something which you can figure out on your own is not a medical emergency but if you ever need help you can just hit call urgent and speak to registered nurses and they can escalate it to a doctor alright we want to take you to another one of the great call apps and that is med coach and this again is pretty neat what allows you to do is keep track keep a log of your medications you should take and whether you have taken it or not so I'm just going to go to a reminder here so that I can show you how this works let me just go back here so let's say you're supposed to take aspirin a low dose tells you one tablet delayed the time you're supposed to take it 356 now at the bottom of the screen we're going to click here so I can show you some more here okay we're going to go into the aspirin and when you have a state taken time and at the bottom here you see just taken taken as shown or skipped so it's pretty neat you can keep track let's say I skipped it I'm going to go ahead and hit skip here and what you have here is the reason why I didn't have any side-effects and other reasons so this is a good way to keep track when you go back to your doctor and you want to explain what you've taken when you've taken it all of that is available here in the log and of course reminders so you put in your information what you're supposed to take and the phone will give you a reminder so again for older people who are looking to keep track of their medications this is going to be fantastic all right and back at the home menu here and we just want to be clear you obviously have all the other features voicemail you've got the camera you've got the internet maps you've got everything it is an Android phone and we'll just go to all apps here to show there are a lot of other apps so again the uses Android app so we don't want to tell you it's too limiting but what we really think this is going to be useful for is people who are new to smartphones and they don't want all those features so you just want a couple of things on your home screen of course the 5-star stuff is going to be great and again very cool that you can enter in all your information in a profile using the GPS and information you entered in if you need urgent care if there's an emergency they're going to have all that even if you can't communicate as long as you can press that big red button to call them so that's a quick look at the Jitterbug touch to come on over to dad does comm we're going to have a full review and a lot more specs on the phone over on the site
– [Eric] Do you think you have a social media phone problem? – For sure! For sure I am addicted in some way or another to my phone. (ethereal music) – [Eric] I'm Eric Limer, Tech Editor at Gear Patrol, and I tested the Light Phone 2. It's a tiny little E-ink smartphone that's designed to try to help you break your worst social media habits by literally not supporting social media at all, ever. And we took it around to some folks in the office to get their knee jerk first impressions.
I talked to Gear Patrol co-founder and fellow geek, Ben Bowers, for his thoughts about it, and then I'll let you know the kind of deep, dark, existential questions, that using a phone like this makes you stare into the mirror and ask yourself. (ethereal music) – Okay, very devicey. – It's cool. It's kinda cute. – It says, Go Light. – All right, correct me if I go off track here. It is a phone for people who don't wanna use their phone, but do wanna use their phone enough to get a separate phone that does nearly all of what their phone does, except for one or two very specific things? – Stripped down, old school, but new school at the same time. Kinda like it! I'm gonna hit the little button here and I've got phone numbers! – No social, no camera, no anything. Can I send text messages with it? – [Eric] Yes it has texts, calls, maps.
– Okay, that's kinda cool. I remember when the original came out, it was so limited that it was– – [Eric] Just phone. – Yeah, it was so pure that it made so little sense in terms of actual use. I think they're going in the right direction. – Nice little qwerty keyboard I could probably pen something out this way. Quick touch, little feedback. Buzzing which is cool and all right, so I'm lookin' at just phone, texts, right? No camera, no social. – I mean they're going in the direction of becoming an actual phone, like smartphone, iPhone. But it's cool. I can't bash the concept that hard. – It's probably a nice way to unplug, but stay plugged. – In initially trying to use it, I'm going to go ahead and say that I do not understand how to use it. – I would be into something like this. I could, as much as I love checkin' the socials, and postin' stuff, I could be into this maybe as a part-time phone.
Maybe it's a weekend device. – I'm gonna guess it costs somewhere about, (buzzes) let's call it $200.00 bucks? – [Eric] It's $349.00. – $349.00. The price of a fairly recent used iPhone. Maybe it's a good stop-gap thing. Maybe it'll be a fun dry January-type of phone. But if you stick with this for too long, you are going to be left behind. – Okay, so $349.00 for this guy! Yeah, that's a tough sell unfortunately. As much as I think this is cool, I feel like it would need to be a lot more bulletproof feeling. It's a little plasticky for that amount. But I still think the concept is cool and very valid. I would just hope that it could be something… You know I have kids, too. I think this could be an awesome device for a young middle-schooler. But I don't know if $340.00's gonna work when I can get something basically of full-fledged (chuckles) device for man, $60.00 bucks with a plan.
Tough sell on the price, awesome concept. – Ultimately it's cool. I wish that it made sense for me to use it. It definitely seems better than the first one, but instead of buying a separate phone you could just delete some apps. – [Ben] My first gut is that it feels a lot like the old Nexus 5 with this matte plastic, but I don't know why it needs to be so tiny! (laughs) – Yeah I know, it is so– – It's a little hard to grip. – It is so ridiculously small. – I actually, I mean I assume the battery life is pretty good. I don't mind the E-ink at all. I mean overall the matteness of it is kinda nice in an age where you get the smear-heavy fingerprint stuff.
What can this do besides call and text? – It's got alarms right now. (chuckles) There is (chuckles) ride share and maps are coming in the future, along with some basic music stuff. So rudimentary features rolling out– – It's got a headphone jack. Too bad no one has headphones anymore with a headphone jack. (laughing) That's a loss. So is this still a version where it has to require another cell phone to get internet, to get cellular service? – [Nick] No.
– [Ben] Or is it still encapsulated? – [Nick] No, it is, so yeah, so the Light Phone 1 was designed to be a second phone and tether off yours, but this one has a SIM card in it, can text, and call directly, so it's a fully-featured phone. – So essentially the point of this device is to be something where if you feel like you're addicted to your typical cell phone, you can't stop browsing Instagram, whatever, you can use this as a communication device? – Right.
– I think there's some appeal to that today. I mean Apple, Android, they've both rolled out a bunch of software updates to show you how you're using your phone. You can even put limits on how much time you use. I guess if you really lack self-control, you just physically remove yourself from the phone. I really like the plastic, I just don't– – Yeah, that's a really nice throwback. I don't know why…
I mean I guess just, I don't know why (chuckles) they stopped making Soft Touch plastic phones. – How does the screen look outdoors? Because that's one issue with E-ink, right, is can you get enough contrast ratio. – [Nick] Yeah, I mean it's looked great outdoors to me. I mean it's arguably better than the… My smartphone has a glare on it, but with the matte screen it looks pretty good. – [Ben] I think the idea of this phone is really interesting because we love these things so much and now everyone pretty much agrees that we love 'em a little too much. But personally, I don't know if I could live with this. But I do think we're seeing a social movement, I mean Apple has admitted it, Google has admitted it with these screen time apps, that think society is waking up to the fact that we're getting more addicted to these devices and so there is a movement to try to retain what got us hooked on these things in the first place, which was communication at all times without all of the junk.
I just don't know if that movement is too early for something like this to succeed. (ethereal music) – [Nick] One of the most immediately striking things about the Light Phone 2 is obviously the design. It's really nice and minimalist and cohesive. The black and white of the E-ink really meshes nice with this whole grey look. It's got this great Soft Touch plastic on the back which is something that you don't find in a lot of phones anymore. The weight and heft of it is really nice; it feels like a device that was really well considered. And it works, which is always good in a phone. You can use it to send messages and make phone calls. The texts go through, the call quality is pretty good and it works on the major carriers. While the Light Phone 2 is definitely super appealing both in an abstract sense and when you have it in your hands, there are a lot of gripes I have about using it which is a weird thing to get into because those are also sort of the point, right.
For instance, the user interface is… The Light Phone doesn't do a lot, so it's user interface can be pretty simple, but it's also pretty abstract to find your way around. When you actually go to type text messages for example, the keyboard, which always comes up landscape, so you have to twist the phone to the side, is extremely small, (chuckles) it's a small phone, which makes typing on it difficult, which is then again compounded by the fact that since it's an E-ink screen when you make typos, and you will, and then you erase them, there's some strange artifacting. It's not as seamless as when you're typing on any smartphone from the past five years. But you can't quite hold that against it, because that's also the point. There's this little bit of a weird situation here where every time that I want to knock the Light Phone 2 for introducing more friction to the use experience, it's like that's also the point, so it's a little bit weird to engage with.
The other main thing we have to talk about when we talk about the Light Phone 2 is what it doesn't do. Not what it doesn't do on purpose, but what it is suppose to do but doesn't do yet. While for now the Light Phone 2 only supports calling and text messaging as its means of communication, there's a lot of stuff built in here for more: You'll notice the Light Phone 2 has a headphone jack. Eventually there's supposed to be music playback features with a interesting little bit of a dividing line of, it will allow you to play music that you already have, but the creators have said they're not gonna include music discovering stuff. The Light Phone 2 also has Bluetooth and WiFi built-in, which again it doesn't really use for any of its current slate of features, but that lays the groundwork for a future feature where this phone could act as a WiFi hotspot, right.
So instead of trying to do things directly on it, you could use it to connect another device to the internet. I think it says a lot about the state of phones, the state of technology, the state of internet in general that this exists, and it's a good thing! There's nothing I would like more then to have devices that have a built-in interest in keeping me from using them literally all the time. But when we're looking at this, the Light Phone 2, as it exists right now, you do have to ask yourself, could I use it for me? No. And I hope that some point in the future there will be a device like this, but Light Phone something else, that either shares the same priorities that I do, or has enough options for personalization that I think I can.
I do think that the Light Phone could be a good fit for a lot of people, but those people are going to have to be an extremely good fit for the Light Phone. This is a device that is appealing to a very big need, but it is serving a very small target market right now. And if you're in that, that's terrific, if you're not, I would caution you against trying to squeeze yourself into it too hard because you might regret it..
If how we spend our days is always connected, staring at our screens, well that would be how we spend the rest of our lives. You see, as humans, we are vulnerable and our smartphones are engineered to use these vulnerabilities against us. This is why we've intentionally designed a phone to be used as little as possible. It's a phone that encourages you to leave behind your smartphone, to spend that quality time doing the things that you love the most. We call it: Going Light. Almost three years, and 10,000 phones later, to find ourselves asking: "How can we go light more often? How can we go light for good?" Introducing: Light Phone 2. A beautiful matte display, 4G connectivity, and messaging. We are rethinking what an operating system can be. A few essential tools, thoughtfully implemented, and a pleasure to use. Maybe an alarm clock, a ride home, a playlist, or some simple directions. These are tools, not feeds. It's a phone that actually respects you. Light was born as a refreshing alternative to the tech monopolies. We don't want to be made to feel that we're not enough. We believe objects can empower us, it can help us appreciate our lives even more. We are humans, and we're taking back our lives.
welcome to all know I am showing how to join the mobile phone without power button now I have ones mobile phone and it has no power button here now I switch on the mobile for how is it pretty simple I connect with Choi sure now it's going to choi jin yes now it's connect is going to charge it and i remove that back cover of this mobile phone okay so now i remove the charger cable from mobile phone and remove the battery from mobile phone and immediate put into mobile okay so i remove no our mobile phone is switched on though the thing is first step I remove the charger cable from mobile four and I remove the battery from mobile phone and immediate I put into mobile now my mobile links switch the arm [Music] okay thank you for watching [Music].