High Capacity OEM Quality Battery For iPhone 14 Pro Max
iPhone 14 Pro Max Battery - High Capacity - OEM Quality delivers longer runtime, precise battery health reporting, and consistent performance tailored for busy repair benches. This pack fits model iPhone 14 Pro Max with model id A2894 and drops in with an OEM-style flex and connector layout, making swaps fast and predictable for experienced technicians.
This cell is built on lithium‑ion polymer architecture with an OEM-grade protection circuit for overcharge, over-dis, overcurrent, and thermal safeguards. This high capacity variant is engineered to exceed the original endurance while maintaining stable voltage curves under heavy draw, so you can hand devices back to customers confident in all‑day use and reliable peak performance.
Technical Data And Compatibility
Compatibility covers iPhone 14 Pro Max only, model id A2894, and matches the original housing, bracket positions, and connector footprint. Chemistry is lithium‑ion polymer with a nominal voltage of 3.85 V and a maximum charge voltage up to 4.4 V as per current-gen Apple standards. Typical original capacity for iPhone 14 Pro Max is 4323 mAh at about 16.68 Wh, and this high capacity build is designed to deliver extended runtime beyond that baseline without compromising charge acceptance or thermal control.
The pack integrates an OEM-style gas gauge and flex for accurate percentage reporting once paired, and it is designed for 500+ full charge cycles to retain at least 80% of its original capacity under normal conditions. The connector is an OEM-form FPC with reinforced pads, and the cell includes a calibrated NTC thermistor for stable temperature feedback. The unit ships with pre-applied pull tabs and adhesive for clean placement, and it aligns with Apple’s internal layout to clear the Taptic Engine, speaker, and logic board without stress on the cable.
Repair-Focused Install Notes
Always discharge the device below 25% before opening, remove old adhesive completely, and install fresh perimeter seals if you need to restore splash resistance. Always seat the new battery flat without flexing, route the flex naturally to avoid points, and tighten standoffs to spec to prevent pressure on the cell. Always test boot, charging, and peak performance current draw before final sealing, then perform two to three full charge and discharge cycles to calibrate the meter.
For proper health metrics in iOS, you can transfer the original board or program the new pack’s data with a compatible tool to pair the gas gauge, which preserves cycle count handling and capacity readout. For refurbishment workflows, batch-test internal resistance, confirm idle drain, and document the post-repair battery health reading after calibration to validate output. For parts traceability, record device fit as iPhone 14 Pro Max and note model id A2894 on your service ticket for consistent inventory control.
