iPad Air 2 teardown reveals lower capacity battery, internal layout tweaks

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A teardown of the recently released iPad Air 2 on Wednesday revealed a slew of iterative changes made to Apple's flagship tablet model, including sized-down components and a smaller battery.

Repair firm iFixit has started its traditional disassembly of Apple's latest iOS device, revealing a few new components designed to fit within the tight constraints of a 6.1mm-thick chassis.

As announced by Apple last week, the new Air 2 comes with a 9.7-inch laminated touch panel, A8X SoC, 8MP rear-facing camera, 802.11ac Wi-Fi and Touch ID fingerprint reader. The shell was also redesigned, seeing the deletion of the orientation lock/mute button and minor aesthetic modifications to the speaker grille and volume control buttons.

Today's teardown finally put a number on battery capacity, with the Air 2 sporting a 27.62 watt hour, 7,340mAh dual-cell unit, down from last year's 32.9 watt-hour configuration. According to Apple, that will get you about 10 hours of continuous use per charge, or 9 hours on the Wi-Fi + Cellular model.

Also new is the Touch ID home button, which appears to share a design similar to the iPhone 6 and iPhone 6 Plus. The module itself is manufactured by NXP. Touch ID is a major addition to the iPad lineup as it enables Apple Pay purchases, though without an NFC chip, payments are limited to online payments.

Finally, the Air 2 features redesigned speakers, repositioned Wi-Fi antennas (located at the top-edge of the Wi-Fi model), dual ambient light sensors and dual microphones, all arranged on variety of customized flex cables.

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