It comes down to capacity the jump starters are like a 1 gallon gass can worth of energy a deep cycle is like a 55 gallon barrel of fuel worth of energy
we can run a trolling motor for hours of fishing from the deep cycle batt , The jump starter might get you 10 minutes of run time
we can run a trolling motor for hours of fishing from the deep cycle batt , The jump starter might get you 10 minutes of run time