
Xell Energy completes product development and customer evaluation of ultra-high-energy-density 420 Wh/kg battery packs WEIFANG, China, Oct. 13, 2026 /PRNewswire/ -- Hongli Group Inc. (the "Company") (Nasdaq: HLP), a cold roll-formed steel profile manufacturer advancing its strategic transition into high-growth clean energy sectors, today provided a corporate update regarding its proposed strategic collaboration with Xell Energy, Inc. ("Xell Energy"). Xell Energy has completed product development and customer evaluation of its high-energy-density battery packs incorporating advanced battery cells with an energy density of up to 420 Wh/kg.









