43R2499-BTI - BTI BATT FOR LENOVO THINKPAD R6 R61I T61 Lenovo ThinkPad R61, R61i, T61, R400, T400, 14W 14.1" Widescreen models only (9-cells). $261.34 $145.19
LN-4X50M08811-BTI - BTI BATT THINKPAD T470 T570 T480 T580, 25 Battery Technology, Inc. (BTI) is a global supplier of replacement batteries & AC power adapters for notebook computers; batteries for digital cameras, PDA's and other mobile devices and... $249.73 $138.74
LN-Y510 - BTI BATT FOR LENOVO 3000 IDEAPAD Y510 Y530 - Volts: 11.1V - Capacity: 5200mAh - Cells: 6 - Chemistry: LiIon $226.51 $125.84
01AV493-BTI - BTI BATT LENOVO Thinkpad T570 T580 P51S P52S Battery 7280 mAH, 11.55 V, 84 Wh, Li-Ion, f/ Lenovo Thinkpad T570, T580, P51S, P52S $174.24 $96.80