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The iPhone 11 Pro Max boasts a longer battery life compared to its previous model. The battery’s performance is optimised, heat is reduced, and overcharging is prevented thanks to it’s advanced smart battery management system. This feature helps to extend the battery life and reduces the need for frequent replacements.

The battery capacity of the Apple iPhone 11 Pro Max is 3969mAh. With this device, you can use your device for an extended period without any concerns about battery life. In addition, the battery has an impressive lifespan of up to 80 hours for audio playback, 20 hours for Internet use, and 12 hours for video playback. This makes it perfect for extended periods of time such as long flights, road trips, and outdoor activities.

One of the battery’s most impressive features is it’s fast charging capability. By using a compatible fast charging adapter, you have the ability to charge your iPhone up to 50% in a mere 30 minutes. This feature allows you to start up your device quickly, even when you’re short on time.

Furthermore, the battery of the iPhone 11 Pro Max is capable of being charged wirelessly. This means that you have the ability to charge your device without the need for wires by simply placing it on the charging pad. This feature is quite useful, particularly when you have multiple devices that require charging simultaneously.


  • Compatible with Apple iPhone 11 Pro Max ONLY
  • Replace your old battery and extend your phone’s charge
  • High Conversion Stable Output
  • 9 Intelligent Protection Functions
  • Battery Overcharge Protection
  • Powerful Chip
  • Durable Design


  • Material: AAA Lithium-ion battery
  • Capacity: 3969mAh
  • Cycle Times: 500-800 times
  • Nominal Voltage: 3.79V
  • Limited Charge Voltage: 4.35V
  • Battery Charging Time: 2 to 4 hours
  • Standby Time: 3-7 days
  • Working Temper: 0-40℃
  • Warranty: 6 months
  • Certifications: UL, CE, ROHS, IEC62133, PSE, TIS, MSDS, UN38.3


  • Yiikoo 3969mAh iPhone 11 Pro Max Replacement Battery – Black x1
Weight94 kg