Replace the battery on an Apple iPhone Air with this genuine Apple battery, part number 661-55235, rated at 3149 mAh. This is an original Apple component supplied brand new, restoring full capacity and reliable runtime to an iPhone Air suffering from battery degradation, rapid drain, or shutdown issues.

Over hundreds of charge cycles, battery health declines and maximum capacity drops, leading to shorter runtime, unexpected shutdowns, and throttled performance. This genuine Apple replacement restores the device to its original 3149 mAh capacity and correct charging behaviour.

Common Faults Resolved

• Rapid battery drain or short runtime
• Battery Health showing degraded maximum capacity
• Device shutting down unexpectedly with charge remaining
• Battery not holding charge or charging slowly
• Swollen battery cell lifting the display
• Performance throttling caused by a degraded cell
• Device not powering on due to a failed cell

Key Features

• Genuine Apple battery — original specification and safety characteristics
• Apple part number 661-55235
• 3149 mAh capacity matches the factory specification
• Restores full runtime and correct Battery Health reporting
• Brand new condition — unused genuine part
• UK trade dispatch with fast delivery to UK repair shops
• 30-day warranty on this genuine Apple part

Compatible With

• Apple iPhone Air — all regional variants

What's Included

• 1 x Genuine Apple iPhone Air battery, 3149 mAh (661-55235)

Important Notes

• Parts pairing: after fitment the device may display a battery message until the battery is calibrated. Genuine batteries can be calibrated using Apple's Repair Assistant to restore full Battery Health reporting.
• Swollen battery safety: never use heat on or near a swollen battery. Remove a swollen cell carefully without puncturing it, as punctured lithium cells can ignite.
• Disconnect the battery before fitment and drain below 25% before starting, as a damaged charged cell can ignite.
• Adhesive removal: release the battery adhesive strips carefully — avoid metal tools that can puncture the cell.
• Replacement adhesive required to secure the new cell and reseal the display.
• Bench-test before sealing — verify charging and Battery Health behaviour before reassembly.
• Installation should be carried out by a qualified technician using ESD-safe and battery-safe tools.

This is a genuine Apple component, supplied brand new and unused. Intended for use by qualified repair professionals and trade technicians only.