Apple introduced a battery case Smart Battery Case for the iPhone 6s. This case is equipped with a built-in 1877 mAh battery, input 5.2V 2.4A, and the output 5V 1A is very conservative. Users can be provided with up to 25 hours of talk time, 18 hours of LTE network and 20 hours of video playback time. Regardless of the price and ability, the appearance of this protective sleeve allows the netizens to vomit continuously. Some people laugh at the "hump" design, some call it "battery vest" or "Ninja turtle."
This case also uses the Lightning interface, allowing users to charge both the case and the phone in less than two hours. The inside is microfiber, and the outside is silica gel, which supports the iPhone Lightning Dock base that Apple introduced earlier. From the official information released: the protective case can be used on the iPhone 6 and 6s, in black and white. The workmanship and materials are all Apple's demeanor. The designer also added passive antennas to the protective case, which greatly improved the iPhone's signal receiving capability.
The battery case has a model number A1585 printed on the inside of the microfiber. When charging, there will be an orange indicator light. When it is full, it will display green. The pull-down notification center will also display the power of both. When used at the same time, it will consume the power of the Smart Battery Case first, followed by the power consumption of the mobile phone. This is a bit like the side charging function in the mobile power supply. Smart Battery Case from 0% to 100% charging test, using the charging head network power curve algorithm online monitoring, the whole process takes 1 hour and 57 minutes; the first 55 minutes into 82.16%, less than an hour can charge 80% of the electricity, This speed is still relatively fast, but this is mainly due to the fact that the capacity of the 1877mAh battery is not large.
During the charging process of Smart Battery Case, the FLIR thermal imager is used to record the working temperature after 30 minutes. The room temperature is 20 °C, and the maximum temperature is 35.5 °C. It appears in the “chin†position of the protective cover. This temperature is quite good, and the hand touch is not hot. Feeling, after all, has not exceeded the body temperature. In this case, Apple has cleverly designed the down speaker as a front speaker. Users seem to like this design quite a bit. Is Apple trying to make a new design for the future iPhone? The microphone is also front-mounted and the grid is positioned the same as on the device. Perhaps many people want to know how these changes will affect the sound quality of the device.
The position of the Lightning interface and the 3.5mm headphone jack is reserved on the protective case. Here we have to point out that if you are not using an Apple Earpods headset, but other headphones that are larger than the Apple Earpods, your headset may not be plugged into the interface.
This protective case will wrap your iPhone 6s tightly. Except for the location of the camera, there is no other place to be exposed. If you bought a pink iPhone 6s in the beginning to show the difference, then I am embarrassed to use this shell basically does not see any difference. However, this protective case is really soft as Cook said. It is not difficult to take out the iPhone or put it in. Like other Apple accessories, this disassembly will be a devastating disassembly. Are you ready?
The heat is first applied to soften the adhesive on the protective casing, and then the layer of cloth above the protective casing is violently torn off. After this step, you can see the "brushed" aluminum metal underneath it. Apple may be treated this way to enhance adhesion. There is also a mesh connection belt to strengthen the silicone hinge to avoid fatigue damage.
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There is a small hole in the microfiber, and the light from the LED charging indicator will shine through it - this indicator will light up when the user charges the battery case (when the iPhone is not in the case). Apple used T3 Torx screws for it, and it was easy to remove it.
This metal plate is like a door that not only protects the battery, but also strengthens the protective case. The inner test also has a layer of shock-absorbing and anti-wear flannel.
Very good, found the battery connector! This means that the battery can be removed directly without the problems associated with soldering iron. First cut off the connection to the battery to avoid accidental short circuit or discharge.
The battery was blackened, model A1617, capacity 1877mAh, 3.8V, 7.13 Whr, charging limit voltage 4.3V; manufactured by Shunda Technology Co., Ltd., originating in China. Safety certification is very complete, passed the Taiwan BSMI certification, certificate number R45093; US UL certification, number E230128; Korea KCC certification, number ZU10216-15001; Japan PSE certification.
The iPhone 6s itself has a battery of 6.55Whr and 1715mAh.
Take out the battery and look at the logic board. The line is buried deep and can only be solved violently. This process also made iFixit find that the protective case is made of hard plastic, although it is very hard, but it is quite comfortable to hold it on the hand.
Two Lightning connectors are placed on the same board with their wires around a plastic frame.
This case also uses the Lightning interface, allowing users to charge both the case and the phone in less than two hours.
Board close-up:
For this battery case, its "brain" may be mainly software on the iPhone, so its chip is very simple. It should be noted here that iFixit and the charging head network respectively found two chips.
Disassemble the discovered chips:
Red: NXP NX20P3 load switch, there is also a switch in the Lightning-USB cable
Orange: NXP 1608A1 charge and discharge management chip
Disassemble the discovered chips:
Close-up of the battery protection board, the positive and negative solder joints on the protection board, TI BQ27545 fuel gauge (the largest IC), protection chip, etc.
Charge and discharge board front, TI BQ24195 charge and discharge management chip
Disassembly summary:
T3 Torx screws are used. Disassembling these screws is not a problem, but they are covered with a very high-viscosity microfiber gasket; the battery can be replaced, but the microfiber gasket is likely to be destroyed; the only possible repair The place - the replacement of the battery - is also difficult due to the viscosity of the adhesive; almost no other form of repair can be done without damaging the protective case.
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