Play NYT Connections Puzzle #433 Sat, Jul 20

Find groups of four related words Need hints?

Solve NYT Connections puzzle #433 - Group 16 words into 4 categories: FLUID, GRACEFUL, NATURAL, SMOOTH, EFFORT, LABOR, SWEAT, WORK, BATTERY, CHARGE, JUICE, POWER, BURST, DAD, MAINSTREAM, SODA.