Need thoughts on battery operated sawsall

Either way i would need to keep the truck running. The plusses to battery power is i can go out there with 2 charged packs, and when they run down, i can start the truck and charge em up off the inverter. The minuses with the batteries are the length of its charge.

The plus to the corded saw are no recharge. The minuses are i have to run the truck continuous, and the inverter has to be able to provide enough power for a corded saw so it wont keep tripping its breaker.