>>23053>Many weapons batteries against a single shield-generator battery is still a defeat, in a fight against greater numbers you still have to avoid their attacks to survive, and using the shield as a bubble trap reduces the number of opponents.Energy shields in a scifi scenario set in a "conventional" war using mostly common soldiers, elite soldiers to a lesser degree and a few weapons of mass destruction presuppose, that energy consumption will place a hard limit on mobile equipment. In this scenario focusing artillery fire on a singular soldier might yield a tactical advantage, yet in most situation it would allow a faster advance of the remaining soldiers. Using shields as a bubble trap would either destroy them fast, contain opponents less effectively than it could have nullified their shots as armor (because of surface area), or require large machinery to operate.
Assuming these sort of shield to be effective would need a major twist in worldbuilding equal to hyperspace in (pre-TLJ) SW, when industry to produce them would be capable of much more. Suppose those shields were electromagnetic fields capable of diverting any particle up to a certain speed and large advancements were made by discovering alloys amplifying these fields range while preserving their magniture. They would more likely extend existing uses by protecting a larger range or protecting them with a higher magnitude. An unconventional but more or less viable use would be interfering with lesser fields lacking the new technology or lacking magnitude in general.
tl;dr using energy shields as a bubble trap would be like creating a smokescreen with zephyr particles