They contain lithium metal which is highly combustible. UPS requires all lithium metal battery air shippers to be approved prior to shipping. The cells must never be disassembled. Lithium batteries are subject to global transportation regulations worldwide. MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Ion Batteries with another object, electric wheelchairs, and keep others out. Everyone you know has one of these and probably takes it everywhere with them and without thinking twice. Reparaturen werden nur mit einer von Horizon vergebenen RMA Nummer bearbeitet.