Premium Li-Polymer Cell Technology ensures ultra-stable power output with 98% energy density for prolonged daily use

Military-grade reinforced casing with shockproof gel layer protects against drops and extreme temperatures

Precision-engineered IC chip prevents overcharging/overheating while maintaining 500+ full charge cycles

Exact OEM specifications including 3.8V voltage and 3969mAh capacity for seamless iPhone 11 Pro Max integration

Laser-welded terminals and ultra-thin 0.1mm polymer film enable slimmest possible profile without bulk

Certified CE/FCC/RoHS compliant with built-in short-circuit protection for complete safety assurance

Perfect for heavy users needing all-day power or businesses requiring bulk replacement batteries

Factory-direct pricing with wholesale discounts available for bulk orders over 50 units