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Teardown of Apple's 11.6-in MacBook Air shows six internal batteries

The inside of Apple's new instant-on, lightweight 11.6-inch MacBook Air has six separate lithium-polymer battery cells, accounting for most of the device's size and weight.

iFixit on Thursday posted its typically thorough disassembly of the new 11.6-inch MacBook Air. Inside, they found the six battery cells which "dominate" the space inside the thin-and-light machine.

The internal components are slightly different from those found in the 13.3-inch model, a prototype of which was spotted before the device was even revealed on Wednesday. That larger MacBook Air has four separate batteries, which are bigger and provide up to 7 hours of active battery life.

In its teardown, the solutions provider found that the onboard 64GB of flash storage easily disconnects from the logic board, but the part is completely custom, meaning an off-the shelf part cannot be used to replace it.

The unique 64GB of onboard memory is made up of six main chips — four 16GB flash memory chips and a solid state drive controller from Toshiba, and a Micron OKA17 D9HSJ DDR DRAM cache. The proprietary solid state drive is just 2.45 mm thick and weighs 10 grams, while the previous MacBook Air's hard disk drive was 5.12 mm thick and weighed 45 grams.

Air Teardown 1


The new MacBook Air also uses the same Broadcom Wi-Fi and Bluetooth chip found on the current MacBook Pros. However, to fit into the tiny frame of the MacBook Air, it comes in a different form factor.

Air Teardown 2


All of the cooling of the new notebook is accomplished with just one, tiny internal fan. Ribbon cable connection points found inside were also discovered to have epoxy on them that acts as an insulator, perhaps to prevent issues if their protective plastic wears out over time.

Air Teardown 3


Included on the logic board are the MacBook Air's Intel Core 2 Duo 1.4GHz processor, Nvidia GeForce 320M graphics, and 2GB of Elpida J1108EFBG RAM. Just as with MacBook Air models, the RAM is soldered to the logic board, making it not upgradable.

For more, see the full teardown at iFixit.

Air Teardown 4