Lithium-ion batteries are composed of several layers that work together to produce electrical energy. These layers include: 1.An Anode: The negative electrode that releases electrons during discharge. 2.A Cathode: The positive electrode that receives electrons during discharge. 3.A Separator: A thin layer that prevents the anode and cathode from touching and causing a short circuit. 4.An Electrolyte: A liquid or gel-like substance that allows ions to flow between the anode and cathode during charging and discharging.Product Item：iPhoneXS Battery Material：AAA Lithium-ion battery Capacity：2658mAh (10.15/Whr) Cycle Times：>500 times Nominal Voltage：3.81V Limited Charge Voltage：4.35VBattery Charging Time：2 to 3 hours Standby Time：72 -120 hours Working Temper：0℃-30℃ Storage Temperature：-10℃~ 45℃ Warranty：6 months Certifications：UL,CE,ROHS,IEC62133,PSE,TIS,MSDS,UN38.3Introducing the iPhone XS Battery, the ultimate solution to all your battery life problems! Whether you're a social media addict, frequent traveler, or gamer, this battery has you covered. In conclusion, if you are looking for a powerful, long-lasting battery for your iPhone XS, look no further than the iPhone XS battery. You'll never have to worry about running out of battery life with this great battery!1. The iPhone XS has a longer battery life than its predecessor. Thanks to its advanced smart battery management system, the battery optimizes its performance, reduces heat and prevents overcharging. This feature ensures that the battery lasts longer and does not require frequent replacement. 2.One of the most impressive features of this battery is its ability to charge quickly. With a compatible fast charging adapter, you can charge your iPhone up to 50% in just 30 minutes. This means you can quickly boot up your device even when time is tight. 3.Additionally, the iPhone XS battery is compatible with wireless charging. This means you can charge your device wirelessly by placing it on the charging pad. This feature is handy, especially when you have multiple devices that need to be charged at the same time.