Battery 661-56056 5088mAh by iPhone 17 Pro Max eSIM A3526 Service Pack

Battery 5088mAh for iPhone 17 Pro Max eSIM (A3526) 661-56056 Service Pack – eSIM version ONLY

Battery module for Apple iPhone 17 Pro Max EXCLUSIVELY eSIM version (A3526) in Service Pack quality designed to restore autonomy, energy stability and performance under intensive use. This variant is specifically developed for models without physical SIM tray, therefore it is NOT compatible with Single SIM or Dual SIM versions with physical tray. It features a 5088mAh capacity optimized for stable charge cycles, efficient power consumption and full integration with the device electronics. Includes verified compatibility with iPhone 17 Pro Max eSIM (A3526) and part number 661-56056 or equivalent. Intended for professional installation with cold testing before final closure.

Key features

• Capacity: 5088mAh
• Nominal voltage: 3.85V
• Battery type: Lithium-Ion
• Compatibility: iPhone 17 Pro Max eSIM (A3526)
• Exclusivity: NOT valid for physical SIM versions
• Part No: 661-56056 or equivalent
• Integrated management: thermal protection and charge control
• Precise connectivity for direct installation without modifications

Service Pack quality ensures perfect fit and full compatibility with the internal architecture specific to the eSIM version. This battery delivers consistent power, reducing performance drops and optimizing usage between charges even under demanding conditions. Its system integration ensures reliable battery status reading and stable behavior during charge and discharge cycles. Designed for technicians and repair shops, it minimizes issues caused by SIM version incompatibilities, simplifies installation and ensures a reliable and long-lasting repair. Ideal for restoring original autonomy with full safety.

Installation tips

Disconnect the battery before handling the device.

Use proper tools and ESD protection.

Perform charge test before final closure.

Avoid bending or puncturing the battery.

Replace adhesives and clean internal residues.

Perform full calibration after installation.

Notice

This battery is free from non-original replacement warning in iOS after installation. However, future iOS updates may change this behavior, as Apple may modify verification policies at software or firmware level.

Technical table

Brand Compatible models Technical model Part Number Component type Dimensions Capacity/Voltage Quality
Apple iPhone 17 Pro Max eSIM (NOT physical SIM versions) A3526 661-56056 or equivalent Battery — 5088mAh / 3.85V Service Pack