Unleash All-Day Power for ThinkPad P1 Gen 7 with L23C4P70 Replacement Battery Is your Lenovo ThinkPad P1 Gen 7 (Type: 21KV/21KW) struggling with short battery life during intensive tasks, travel, or meetings? This 100% brand new L23C4P70 battery is engineered to restore peak performance. With a high 90Wh/5770mAh capacity and 4-cell Li-ion design, it delivers reliable, long-lasting powerperfect for creative work, 3D modeling, or business productivity.