The Warrior Battery Charger Model 37‑633 is an OEM-grade, Trade Agreements Act (TAA) compliant charging system designed for the Safeguard Medical Warrior fluid warming device. It serves as a fully integrated charger—providing regulated power, charging logic, and safety features—for the Warrior battery pack. Built to NATO and U.S. government procurement standards, this rugged unit is engineered for field and clinical environments, ensuring reliable recharging of the 12 V lithium-ion battery that powers the portable blood/fluid warmer.