Apple iPhone 12 Pro Max Original-Capacity Replacement Battery (3687mAh)

The iPhone 12 Pro Max battery is a premium, high-density internal Lithium-ion cell tailored exclusively for Apple’s 6.7-inch flagship. This generation features an innovative L-shaped battery architecture (built inverse to the XS Max layout) designed to weave tightly around the massive triple-camera housing and 5G logic board modules. The cell feeds power directly to the highly capable A14 Bionic chipset.

When the maximum battery capacity drops below 80% under Settings > Battery > Battery Health, iOS applies dynamic performance throttling to protect the mainboard from unexpected brownouts. This shows up as distinct hardware performance limits: the phone heating up noticeably around the mid-frame during charging, micro-stuttering while browsing social feeds, slow processing on heavy photo/video files, and instant power blackouts below 15%. Swapping in a premium replacement cell removes this bottleneck, giving you back smooth performance and original multi-day standby runtimes.

• Battery Model: iPhone 12 Pro Max / APN: A2479 / 616-00547

• Battery Type: Lithium-ion (Li-ion)

• True Capacity: 3687 mAh

• Standard Voltage: 3.83V

• Charging Voltage Limit: 4.45V

• Form Factor: Specialized flagship single-cell L-shaped layout.

• MagSafe & Fast Charging Sync: Fully optimized to support Apple’s 20W USB-PD wired fast charging and magnetic MagSafe wireless inductive arrays without causing high-temperature thermal safety shutdowns.

• Safety Integration: Built with an advanced integrated dual-IC Protection Circuit Board (PCB) to buffer the logic board from power surges, regulate heat metrics under load, and prevent dangerous cell expansion (bloating).

• Device Compatibility: This exact 3687mAh component and its specific logic board flex terminal natively fit:

  • Apple iPhone 12 Pro Max (Models: A2342, A2411, A2412, A2410)