Blue Star HQ battery designed for iPhone models. Made with maximum precision, perfectly matched to the dedicated model. Safe to use, it has undergone a number of tests to confirm its safe operation. Made of lithium-ion cells using the latest technologies including laser welding and precision automation. Battery life is 800 charge/discharge cycles. After 500 cycles, the battery boasts a capacity of 80%. Standard batteries reach a capacity of 75% after just 120 cycles. The battery contains a dual IC protection chip, which on the one hand controls the stability of the current flow between the battery and the phone, and on the other hand indicates the real charge rate of the device with an accuracy of 1%. This allows the user to prepare to connect the device for charging and not be surprised by its sudden shutdown. The battery has a number of protections: against overcharging, discharging, short circuits and thermal protection. It works efficiently in high and low temperatures. A mounting tape is included for easy battery installation. The tape is very durable, it has passed tests with a tension force of up to 5 kg. Specification: Cells: li-lon Dual IC protection chip No memory effect Number of cycles: 800 Mounting tape included