Blue Star HQ battery designed for iPhone models. Manufactured with maximum precision, perfectly tailored to the specific model. A series of tests confirm its safe operation. Made from lithium-ion cells using the latest technologies, including laser bonding and precise automation. The battery lifespan is 800 charge/discharge cycles. Studies have shown that even after 500 cycles, Blue Star HQ batteries retain 80% of their capacity. In the same study, regular batteries reached 75% after just 120 cycles. The battery features a dual IC protection system that monitors the stability of the current flow between the battery and the phone and accurately (to 1%) indicates the device's real charging level. This prepares the user to connect the charging device and prevents surprises from sudden shutdowns. The battery has multiple protections: overcharge, over-discharge, short circuit, and thermal protection. It operates effectively in high and low temperatures. The kit includes mounting tape for easy installation of the batteries. The tape is very durable and tested to withstand up to 5 kg of force.