New 2450 Battery you’re going to need – https://amzn.to/2tOAI0B
This is the PEPS key fob commonly found on Fords. This one is also used in the 2019 – 2020 Lincolns. All you need to replace your weak or dead battery is your small flat blade screwdriver and a fresh 2450 battery.
2019-2020 Ford Lincoln Smart Remote Key Fob 5 button
OEM Ford Motor Co. PN: 164-R8198, 164R8198, 164 R8198, 5933985, JL1T-15K601-BA
FCC ID: M3N-A2C931426 , M3N-A2C931426
Emergency insert key: same as OE Ford PN: 164-R8168 164R8168 and Strattec 5929522
Frequency: 902 MHz