When Ves rigged the energy cells he pried off the paralyzed exoskeleton armors to explode, he underestimated their explosive yield.
How could he know that the elite guards of the Honored Ones made use of high-capacity infantry-grade energy cells? Although not as exaggeratingly stuffed with energy as ultracompact batteries, these high-capacity energy cells stored at least fifty percent more energy in the same volume compared to a regular one?
Of course, their price was a lot more expensive as well. Normally, an infantry troop would ordinarily carry spares or resupply themselves when they ran out rather than use these high-capacity energy cells.