Upgrade your iPhone 11 Pro Max with the Battery Cell w/ Built-In Flex (BMS) – 3969 mAh, now available at Gadget Break. This high-performance replacement battery is designed for easy installation without spot welding, thanks to its built-in flex cable and advanced Battery Management System (BMS) for improved safety and performance. Perfect for technicians and DIY enthusiasts, it delivers long-lasting power and reliable performance to restore your iPhone’s battery life to like-new condition.

Whether you’re fixing a sluggish phone or preparing a refurb, this battery ensures seamless compatibility and maximum efficiency with your iPhone 11 Pro Max. Trust Gadget Break for top-quality parts that make every repair smarter and safer.