【Compatible Models】Replacement Battery for iP 11(A2111、A2221、A2223) only. Battery capacity:5200mAh, Voltage: 3.83V. Please check your phone model before purchase, make sure it matches your mobile phone model. 【Screws Provide】Package includes: iP 11 battery*1+ Professional repair tool kits as the photos show. A full set of screws is also included, so there is no need to worry about screw slippage issues during the battery replacement. 【High Quality Li-ploymer Battery】5200mAh higher capacity battery for the iP 11 is made from high-quality lithium-ion polymer batteries. Advanced technology enables the battery to have a capacity of up to 5200mAh, which is more powerful than the standard 3110mAh battery and can effectively prevent overcharging, overheating protection and over-discharge. Every battery must pass a stringent inspection. Please rest assured to choose us and use it. 【About Installation】Before replacing your iP 11 battery, we recommend searching for and watching relevant 11 battery replacement video videos on YouTube. Installing is simple, even for beginners, so don't be concerned about a complicated installation. 【Good After-sales Service】 We place a high value on customer experience.If you have any questions, whether before or after sales, please do not hesitate to contact us. We will do our best to solve it for you.