Premium Hollow Dummy Battery – AA/18650/21700 Sizes
Crafted with precision-machined stainless steel shell for durability and authentic weight simulation. Ideal for product prototyping, vape mod testing, or electronic device design without live battery risks. Electrolyte-free non-conductive core ensures 100% safety during handling, storage, and transportation. Seamless compatibility with battery compartments – identical dimensions to real cells (18.6mm/21mm diameter). Perfect for photography props, educational demos, or retail displays with zero maintenance required. Global wholesale support – bulk orders at unparalleled pricing with fast international logistics.