Ultralife Stock Soars 145%. EnerSys to Buy It for the ‘Battlefield of the Future.’ Ultralife Stock Soars 145%. EnerSys to Buy It for the ‘Battlefield of the Future.’ · Barrons.com · NYSE Kit Norton October 28, 2026 1 min read ENS +3.11% ULBI +0.13% Ultralife stock soars as EnerSys prices in massive premium for a key cog in the ‘battlefield of the future.’ Continue Reading Terms and Privacy Policy Your Privacy Choices More Info