Huiyuan charger details bellow COMPATIBLE MODELS】Fit for Lenovo ThinkPad T520 T520i T530 W500 W510 W520 W530 W700 Laptop Power Supply Adapter Cord 【POWER SPECS】AC input:100 - 240V / 50-60Hz, DC Output:20V/8.5A Power : 170W (Compatible with 20V 6.75A 135W and 20V 7.5A 150W) Connector size: 7.9*5.5mm (ref to the picture) 【COMPATIBLE P/N:】42T5284/45N0114/45N0118/45N0116/45N0112/45N0111/45N0113/0A36227/0A36228/0A36229/0A36230/0A36231/0A36232/0A36233/0A36234/0A36235/0A36236/0A36237/0A36238/0A36239/0A36240/0A36241/0A36242 Laptop 【PROTECTION FEATURESA】new generation of Synchronous Rectifier (SR) controller ICs is used to obtain under-voltage protection and internal over-temperature protection. Its high level of integration allows the design of a cost-effective power supply with a very low number of external components. It passed the UL / CE / FCC / RoHS testing and was made with the highest quality materials. 【WHAT YOU GET】One New for Lenovo 170W Adapter Charger and One Package Box. 1 month money return guarantee and provides Life Time Warranty,24H x 7 email suppo