About the BTI Battery
BTI LN-4X50M08811-BTI 10.8V 48WHR LI-ION NOTEBOOK BATTERY FOR THINKPAD T580 20LA, T580 20L9, T580, T570 20JX, T570 20JW, T570 20HA, T570 20H9, T570, T480 20L6, T480 20L5, T480, T470 20JN, T470 20JM, T470 20HE, T470 20HD, T470, P51S, 25 20K7, 25, A485, A475BTI LN-4X50M08811-BTI 10.8V 48WHR LI-ION NOTEBOOK BATTERY FOR THINKPAD T580 20LA, T580 20L9, T580, T570 20JX, T570 20JW, T570 20HA, T570 20H9, T570, T480 20L6, T480 20L5, T480, T470 20JN, T470 20JM, T470 20HE, T470 20HD, T470, P51S, 25 20K7, 25, A485, A475