Amazon.com: Original Ac Adapter 135W 20V 6.75A Laptop Charger for Lenovo All in one T450P T460P C350 C360 C365 C460 C560 A540 A740 B5400 G400 G400s G405 G405s G410 G410s Power Supply
BattPit: New Replacement Laptop AC Adapter/Power Supply/Charger for Lenovo ThinkPad T540p 20BE00BW, 0B47045, 0C19880, 36200246, ADLX45NCC3, ADLX45NLC3 (20V 4.5A 90W) - Walmart.com
65w Charger Plug Power Supply Cord for Lenovo B5400 B40-30 B40-45 B40-50 Series | eBay