IBM ThinkPad R30 R31 Series Li-Ion Laptop Battery 02K6824.IBM Part Number: 02K6824Compatible Part Numbers: 02K6823 11S02K6823 02K6821 02K6825 02K6829 02K6830 02K6832Compatible Models: ThinkPad R30 2656 (12.1 TFT) ThinkPad R30 2656 (13.3 TFT) ThinkPad R30 2656 (14.1 TFT) ThinkPad R30 2676 (13.3 TFT) ThinkPad R30 2676 (14.1 TFT) ThinkPad R31 2656 (13.3 TFT) ThinkPad R31 2656 (14.1 TFT) ThinkPad R31 2657 (13.3 TFT) ThinkPad R31 2657 (14.1 TFT) ThinkPad R31 2676 (13.3 TFT) ThinkPad R31 2676 (14.1 TFT)