Please check compatibility with your laptop carefully as laptop models do vary.Ensure you have the correct Tip Size, Output Voltage and Amp Rating from your previous charger.The AC power adapter enables you to operate your laptop or charge the battery from electrical power outlets.If you are running your computer on AC power with a battery installed, the adapter charges the battery ( if needed ) and maintains its charge.Tip Size: 7.9 x 5.5mm TipOutput: 20V 4.5AUK Three-Pin Plug Power CordFit for models :Replace IBM Part Number: 92P1105, 92P1106, 92P1109, 92P1110, 92P1113, 92P1114, 92P1153 , 92P1155 , 92P1157 , 92P1159 , 93P5026 , PA-1900-171 FRU 92P1104 (ASTEC), FRU 92P1106 (ASTEC), FRU 92P1108(Lite-On) ,FRU 92P1110 (Lite-On),FRU 92P1112 (Sanken), FRU92P1114(Sanken), 40Y7630, 40Y7659, 40Y7660, 40Y7661, 40Y7662, 40Y7663, 40Y7664, 40Y7665 , 40Y7667, 40Y7668, 40Y7669, 40Y7670, 40Y7671, 40Y7672, 40Y7673, 40Y7674, 40Y7697, 40Y7698, 40Y7699, 40Y7700, 40Y7701, 40Y7702, 40Y7703, 40Y7704, 40Y7705, 40Y7706, 40Y7707, 40Y7708, 40Y7709, 40Y7710, 40Y7711 Supported with IBM Laptop: IBM/Lenovo ThinkPad T60 Type 1951. IBM/Lenovo T60, Z60 Series (integrated graphics only), IBM ThinkPad X60 1706, 1707, 1708, 1709 , 2509, 2501. IBM ThinkPad X60s 1702, 1703, 1704, 1705, 2507, 2508, 2533, IBM/Lenovo ThinkPad Essential Port Replicator IBM ThinkPad Z60 Series: ThinkPad Z60, ThinkPad Z60m, ThinkPad Z60t IBM ThinkPad Z61 Series: ThinkPad Z61e, ThinkPad Z61t IBM ThinkPad T60 Series: ThinkPad T60, ThinkPad T60p IBM / Lenovo ThinkPad R60, R60e IBM / Lenovo ThinkPad R61, R61e, R61i IBM / Lenovo ThinkPad R400, R500 IBM / Lenovo ThinkPad X200, X200s, X200 Tablet IBM / Lenovo ThinkPad X300, X301 IBM / Lenovo ThinkPad SL300, SL400, SL500 IBM/Lenovo 3000 Series: Lenovo 3000 C100, Lenovo 3000 N100, Lenovo 3000 V100 Lenovo V200 N200 C200 Please check compatibility with your laptop carefully as laptop models do vary.