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Home › Teardowns › Accessories › Teardown of AirPods 3 Charging Case
  • 5

Teardown of AirPods 3 Charging Case

Yi
November 15, 2021

Recently, Apple released the third generation of AirPods. It adopts a similar appearance design as AirPods Pro. But it can support up to 30 hours of listening time, which is 6 hours longer than AirPods Pro. Besides that, it also supports MagSafe charging, which means it can be easily attracted to the MagSafe charger.

So, let's take apart this tiny charging case to see what's inside.

1. Appearance

Teardown of AirPods 3 Charging Case-Chargerlab

The charging case is slightly smaller than AirPods Pro. The groove can make it easier to open.

Teardown of AirPods 3 Charging Case-Chargerlab

The pairing button is in here. Long press to connect.

Teardown of AirPods 3 Charging Case-Chargerlab

And the bottom is the Lightning port.

Teardown of AirPods 3 Charging Case-Chargerlab

Model: A2566, Apple Inc.,

Rated Capacitor: 345mAh/1.327Wh

Input: 5V⎓1A, Output: 5V⎓1A.

Teardown of AirPods 3 Charging Case-Chargerlab

Here are the pogo pins, used to charge the AirPods 3.

Teardown of AirPods 3 Charging Case-Chargerlab

The weight of the charging case is about 37.9g (1.34 oz).

Teardown of AirPods 3 Charging Case-Chargerlab

Use ChargerLAB POWER-Z KM001C to test, the charging power is about 1.6W.

2. Teardown

Teardown of AirPods 3 Charging Case-Chargerlab

Firstly, just pry and open the charging case.

Teardown of AirPods 3 Charging Case-Chargerlab

It can be divided into two parts and fixed by clips and glue.

Teardown of AirPods 3 Charging Case-Chargerlab

Take a closer look at the charging case.

Teardown of AirPods 3 Charging Case-Chargerlab

Those two parts are fixed by glue.

Teardown of AirPods 3 Charging Case-Chargerlab

And this is how those two parts are fixed together.

Teardown of AirPods 3 Charging Case-Chargerlab

Some magnets are at the bottom of the upper part, used to attract the AirPods and lid.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the internal design.

Teardown of AirPods 3 Charging Case-Chargerlab

Take out the charging chamber. We can see it connect to PCB through cable.

Teardown of AirPods 3 Charging Case-Chargerlab

Here is the QR code.

Teardown of AirPods 3 Charging Case-Chargerlab

Next, take out the entire module.

Teardown of AirPods 3 Charging Case-Chargerlab

A large-area graphite thermal pad is attached to the inside of the case.

Teardown of AirPods 3 Charging Case-Chargerlab

Take a closer look at the Lightning port from inside.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the pairing button, and the charging coil is next to it.

Teardown of AirPods 3 Charging Case-Chargerlab

Two square magnets are fixed on the inside of the case for MagSafe charging.

Teardown of AirPods 3 Charging Case-Chargerlab

Close-up of the magnets.

Teardown of AirPods 3 Charging Case-Chargerlab

Close-up of paring button's outside.

Teardown of AirPods 3 Charging Case-Chargerlab

Close-up of paring button's inside.

Teardown of AirPods 3 Charging Case-Chargerlab

There is a sealing ring on the side, used for dustproof and waterproof.

Teardown of AirPods 3 Charging Case-Chargerlab

And that's the structure of the charging case.

Teardown of AirPods 3 Charging Case-Chargerlab

The components are connected by BTB connectors, which are reinforced by glue.

Teardown of AirPods 3 Charging Case-Chargerlab

The Lightning port is also connected by BTB connectors.

Teardown of AirPods 3 Charging Case-Chargerlab

Remove all the BTB connectors, that's all components of the charging case.

Teardown of AirPods 3 Charging Case-Chargerlab

The front of the circuit Lightning port.

Teardown of AirPods 3 Charging Case-Chargerlab

The back of the circuit Lightning port.

Teardown of AirPods 3 Charging Case-Chargerlab

An LED indicator.

Teardown of AirPods 3 Charging Case-Chargerlab

The Lightning port is surrounded by foam for dustproof and waterproof.

Teardown of AirPods 3 Charging Case-Chargerlab

This is an unknown component, but we guess it might be used to detect the status of the lid, which is similar to MEMS microphone.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the battery of charging case. Model is A2516.

Rated capacity is 345mAh/1.327Wh.

Rated voltage is 3.85V.

Limit voltage is 4.45V.

The manufacturer is DESAY.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the back of the battery.

Teardown of AirPods 3 Charging Case-Chargerlab

Front of the protective plate of lithium battery.

Teardown of AirPods 3 Charging Case-Chargerlab

Back of the protective plate of lithium battery. And the contacts are spot welded on the plate.

Teardown of AirPods 3 Charging Case-Chargerlab

Close-up of the coil and PCB.

Teardown of AirPods 3 Charging Case-Chargerlab

The charging coil is placed on the ferrite sheet.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the microswitch of the pairing button.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the resonant NPO capacitor.

Teardown of AirPods 3 Charging Case-Chargerlab

And this is the wireless charging chip, which comes from Broadcom 59356A2KUBG.

Teardown of AirPods 3 Charging Case-Chargerlab

Front of the PCB.

Teardown of AirPods 3 Charging Case-Chargerlab

Front of the PCB.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of T5HN.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of T4.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of 6Y2.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of E+11.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of C1 4Y6.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of 8K16F3.

Teardown of AirPods 3 Charging Case-Chargerlab

This chip comes from STMicroelectronics STM32L496WGY6P.

Teardown of AirPods 3 Charging Case-Chargerlab

Info of STM32L496WGY6P.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of 3441.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of T5LL.

Teardown of AirPods 3 Charging Case-Chargerlab

This is Apple's customized chip, marked with 343S00517.

Teardown of AirPods 3 Charging Case-Chargerlab

The second chip of 3441.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of 18H208.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of 8L11C6.

Teardown of AirPods 3 Charging Case-Chargerlab

This is the charging IC from NXP 610A3B.

Teardown of AirPods 3 Charging Case-Chargerlab

A chip of 32An.

Summary of ChargerLAB

Well, the design of AirPods 3 charging case is close to AirPods Pro, but a little bit smaller.
But actually, the internal structure is very different.
The internal structure of AirPods 3 charging case is relatively simpler.
Compared to AirPods Pro, it only has one battery. And a lot of glue is used for fixing.

Source: 52audio.com

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