I have 2021 PB lariat & I just turned over 65K miles - just completed @ dealership- spark plugs - BG platinum fuel system clean - coolant flush/ transmission flush/ Rear Diff service & brake fluid flush - great thing - everything is on Carfax for documentation!
& New AGM H7 battery too.
The last time I was @ the local Ford Dealer he assured me that is there is only - 1 battery under the hood & not one under my seat - I will check tomorrow! But when I called parts he said your 2021 PB only has a battery, mine doesn’t have the 7.2 KW option either.
Yes - I’ve used BG MOA - these products are the best for these motors- I’ve got a powerboost F-150. Pint can - you can also buy them on eBay too. The 44K is great for the fuel tank too.