*HIGH QUALITY GRADE AAA+ AND BRAND NEW FOR IPHONE 8G. *CAPACITY:8G Non-removable Li-Ion 1821 mAh battery (6.96 Wh) Charging Fast battery charging 15W: 50% in 30 min USB Power Delivery 2.0 Qi wireless charging *DOUBLE IC WITH NTC PCB OFFER OVER DISCHARGED,OVER CURRENT AND SHORT CIRCUIT PROTECTION,MORE SAFEGUARD FOR USING,LONG STANDBY TIME,LONG TALKING AND LONG LIFE. *SAFELY AND STABLE HI TECH LITHIUM-ION BATTERY,UNDERGOES DROP TEST,SMASH TEST AND ACUPUNCTURE TEST TO ENSURE NO FIRE AND EXPLOSION IN BREAKING. *GLIDED CONNECTOR,BETTER CONDUCTIVE PROPERTIES,NOT EASY TO HAVE RUST PROBLEMS