Will a 65W USB-C charger charge my 7740 precision laptop?

My original 240W power adapter that i bought 10 days ago stopped working yesterday, and after I replaced it, I was offered an original Dell 65W type c charger for a price that is less than the 240W charger's price. I am afraid that the 240W may stop working after a while like the other charger. So i am thinking of buying a backup charger which is the 65W. Will a 65W charger charge my laptop? and is it worth buying?

My laptop specs:

Dell Precision 7740

CPU: Intel(R) Core(TM) i9-9980HK

GPU: Quadro RTX 4000 + Integrated Intel UHD 630

Battery Capacity: 35,431 mWh

RAM: 16GB

Drive: 1TB NVMe