High-capacity 3830mAh lithium-ion battery engineered for iPhone 6s Plus 6 7 8 5s models with precision-fit connectors and reinforced circuitry. Premium Japanese cells ensure 100% health status and zero error reporting with built-in surge protection for extended lifespan. Seamless compatibility for gaming streaming and multitasking without performance drops. Military-grade shockproof casing and heat-resistant polymer layers prevent swelling or overheating. Direct OEM replacement with tool-free installation and instant power restoration. Bulk pricing available for repair shops and resellers with global shipping from certified warehouses.