The HDCKU Replacement Battery for iPhone 4 is a 1420mAh 3.5 inches 3.7V Li-Ion Battery, this is a great option for when your iPhone’s original battery becomes over used and starts losing life quickly. The replacement battery is high quality and has a zero cycle, with the same 1420mAh capacity as the OEM original one. It also comes with a 30-Day money back guarantee and 12-month warranty.
It comes with a complete tool kit to help replace the internal battery of your iPhone 4. The kit contains; Pentalobe star screwdriver, Philips #000 screwdriver, SIM card ejector tool, microfiber cloth and two plastic prytools.