Smart Battery Case Teardown

For your review, here are details regarding certain intelligent eyewear models.
Expect up to 20 hours of video playback, 18 hours of online activity utilizing LTE, or a maximum of 25 hours of continuous conversation.
The electrical connector used for power and data transfer is a Lightning connector.
The interior surfaces are constructed of microfiber material, while the exterior is made of silicone.
This device is designed for use with iPhone models that utilize a Lightning connector.

The battery compartment's model identifier, A1585, is printed on the interior, microfiber-covered surface.
Through a carefully designed internal channel system, Apple redirects the sound from the speaker originally positioned on the bottom of the device to project it towards the front.
The inclusion of front-facing speakers has been positively received by users, raising speculation about its potential adoption in subsequent iPhone models.
The microphone is positioned facing forward and incorporates an additional protective grille, mirroring the design of the speaker port.
Careful evaluation of the resulting audio performance is recommended to assess the impact of these modifications.

The rear surface of the battery cover incorporates a specialized compartment designed to securely hold an iPhone 4.
The Smart Battery utilizes an external Lightning connector for charging and data transfer to the iPhone, but audio output via headphones is achieved through an opening designed to accommodate a standard 3.5 mm connector.
The opening in the case is precisely dimensioned to accommodate the Apple Earpods that come with your iPhone.
Larger equipment requires an adapter; this unit does not incorporate connections suitable for professional studio applications.

Owners of rose gold models should anticipate a diminished visual luster because the protective casing will obscure a significant portion of the metallic finish.
The flash unit is expected to remain operational and unaffected by this repair procedure.
To facilitate easy insertion and removal, the phone case incorporates a flexible section made of a pliable elastomer material located above the battery area.
The process functions adequately, though repeated daily use is discouraged; the internal components likely incorporate a strengthening element, details of which will be provided subsequently.

Expect this repair to necessitate complete disassembly, similar to previous Apple products with integrated components; proceed with caution.
Applying heat from a specialized tool like an iOpener loosens the adhesive bond holding the fabric lining in place, allowing for careful separation of the cloth layer.
Carefully remove the lining to reveal the brushed aluminum surface.
The observed surface scratches likely enhance the adhesive's bonding capability.
A reinforcing mesh layer is integrated within the silicone hinge construction to resist wear and potential failure.

Because the microfiber material is intentionally punctured with a small aperture, the LED charging indicator becomes visible; this illumination is only observable when the battery case is being charged independently, without an iPhone inserted.
The occurrence is exceptionally rare, essentially nonexistent.

Now that you've located the T3 Torx screws, proceed with the repair.
Utilize the included 64 Bit Driver Kit to perform the necessary screw rotations.
The battery compartment is accessed via this metal plate, which also reinforces the device's casing and shields the battery.

You’ve located the battery connector.
To avoid potential short circuits or unexpected power loss, begin by disconnecting the battery; the connector simplifies this process, eliminating the need for soldering.
Due to its strong adhesive bond, the battery serves as a structural component, contributing to the iPhone 6s’s case rigidity and safeguarding its internal components.
The battery's 7.13 Whr energy storage, equivalent to 1877 milliampere-hours at 3.8 volts, provides a capacity exceeding double that of the iPhone 6s's original 6.55 Whr.
For users prioritizing maximum power output, alternative solutions exist, offering performance capabilities approximately twice that of the Smart Battery Case.

After disconnecting the battery, begin carefully separating the logic board, tracing its cable's path as it extends within the case's lower plastic components.
To access the internal components, it will be necessary to create an opening; therefore, a section of the Kit-Kat bar housing will be removed.
After removing the case's bottom section, proceed to cut away the plastic covering; the entire case—excluding the flexible hinge—consists of a hard plastic body uniformly layered with a soft silicone coating, providing a durable yet comfortable grip.

Carefully cut the necessary connections to release the components responsible for the battery's smart functionality, a process reminiscent of older device disassembly procedures.
The board containing both Lightning connectors is secured by a plastic frame, which also holds the connecting cable.

The Smart battery's functionality largely depends on software within the iPhone; examination reveals only basic integrated circuits contained within.
The NX20P3 load switch manufactured by NXP Semiconductor is also a component commonly found within Lightning to USB cables.
The charging integrated circuit is an NXP Semiconductor component, model number 1608A1, also identified as CBTL1608.

The Smart Battery receives a repairability score of 2, on a scale where 10 represents the simplest repair process.
Standard T3 Torx screws are used for repairs, but access is complicated by a firmly bonded microfiber liner.
Replacing the battery involves a high probability of damaging the microfiber liner.
Battery replacement, the sole repair option, presents a challenge due to the use of robust adhesive.
Further troubleshooting or attempts at restoration are not feasible and will inevitably damage the unit.