VSKA1077 Features: * Safe lithium-ion technology * Smart technology communicates accurate information to the computer * No memory-effect * Overcharge protection built in * 6 Cells * Provides 4400 mAh of capacity * Lithium-ion rechargeable * Replaces the following DELL part numbers: 0T6137, 0T6545, 0T6840, 0U6185, 312-0341, 312-0342, 415-10257, T6137, T6545, T6840, U6185, U6256, X6753, Y6457, 0U6256 * Fits the following DELL models: DELL LATITUDE X1