Stored energy
A lot of the inside is battery.
Those large black sections across the lower half are battery cells. Spreading them across the case makes room for more capacity without making the laptop much thicker.
A closer look
The battery is a separate assembly from the logic board. Reaching it and handling its adhesive carefully are part of the replacement work.
↳Several cells. One battery assembly.
Moving heat
Small fan. Important job.
The circular blades move air through the cooling system. The fan works with the heat sink to carry heat away from the electronics and out of the case.
A closer look
Cooling is a system: the fan, air path, and contact between the hot components and their cooling hardware all have a role.
↳Airflow is only one part of cooling.
Connected systems
The connections behind everything.
The logic board connects the computer’s processors, power circuits, and other electronics. The tiny components you can see are only part of that network; copper connections also run inside the board.
A closer look
A board repair works at the level of components and electrical connections. Replacing an entire board is a different kind of job.
↳A circuit board has more than one layer.
Sound, in a small space
Even the empty space has a job.
The speaker sits along the edge beside the battery. Its shaped enclosure gives sound room to move inside a very thin computer.
A closer look
The enclosure, its mounting points, and the connection to the board all belong to the speaker assembly. Repair involves more than the visible speaker surface.
↳The enclosure is part of the sound.