I also use a Ridgid drill, and you might consider your batteries. The peak current that a battery can provide is related to:
1: size- larger capacity batteries have more cells in parallel, so they can provide more current. (subject to the limits of the electronics)
2: Temperature- they lose current capability when cold
3: Age: They wear out- hence the LSA. They don't completely die all at once, their capacity and current capability degrade with each charge cycle.
I had cutouts this year with my old 3AH batteries. Bought a new 9AH- what a difference! No problems even very cold, and I can drill 100 holes and still have 2 bars.
They had the 9AH in a kit with a charger for $89 this year. Treat yourself to one if they get down there again.