Compliance is a major price driver. For international trade, ensure the product has UN38.3 certification for safe transport, as well as CE, FCC, or RoHS marks for regional market access. For the North American market, UL 2743 is the gold standard for portable power station safety. Investing in a supplier that provides MSDS (Material Safety Data Sheet) reports is non-negotiable to avoid customs seizures and ensure the Battery Management System (BMS) includes protections against over-voltage, short-circuits, and thermal runaway.