The Sony LIP1635ERPCS is a replacement battery with a capacity of 2300mAh, designed for use in the Sony Xperia XA1 smartphones with model numbers G3123 and G3121. This battery provides a reliable and long-lasting power source for your device, allowing you to stay connected and productive throughout the day. With this replacement battery, you can enjoy the same level of performance and reliability as your original Sony battery.