The Lenovo 36200245 AC adapter supplies external power to compatible Lenovo laptops. It is the 45W Delta ADLX45NDC3A unit, identified by MPN 36200245.
Its output is 20V at 2.25A, and the manual classifies it as a Lenovo 3-pin AC adapter. These details help match the adapter’s power output and connector class when choosing a replacement.
Lenovo lists it for the G405 and G505 laptop models. The model references help check whether this adapter is intended for your laptop.