The Lenovo 45N1070 Replacement Laptop Battery is a reliable power solution for Lenovo ThinkPad X1 Carbon models. Featuring a 46Wh capacity and 4-cell Li-ion design, it delivers long-lasting power with up to 10 hours of battery life, depending on usage. This battery is compatible with various ThinkPad X1 Carbon series and offers up to 500 recharge cycles. With built-in safety features like protection against overcharging and overheating, it ensures optimal performance and durability, making it an ideal replacement for users seeking to extend their laptop’s battery life.