Genuine Lenovo LOQ chargers are listed below by model or by power rating, please do check either your broken Lenovo LOQ ac adapter for the output or look underneath your laptop for input, as this will specify what amps you need, as many model numbers of Lenovo notebooks, can use 3 different chargers depending on specification of the notebook itself, so far the range is the 20v 6.75a, 20v 8a and 20v 11.5a or in wattage is 135w, 170w and 230w, all are available below and any trouble working out which one is yours please contact us and we will quickly and happily help you.