18650 plug-in type PP ABS battery pack, certified by ISO and CE

This is a plug-in battery holder designed specifically for single 18650 lithium batteries. The main body is made of a composite material of PP (polypropylene) and ABS engineering plastic, offering both heat resistance and impact resistance. It has passed both ISO and CE certifications, meeting international safety and quality standards. The interior uses highly elastic nickel-plated metal springs as positive and negative contact points, ensuring secure battery installation and excellent conductivity, effectively preventing poor connections caused by vibration or drops. The battery holder supports a 3.7V output (single 18650 cell), suitable for various portable electronic devices. It comes with red and black wires for easy connection to circuit boards or device power ports. The compact enclosure measures 78mm×21mm×21mm and features mounting holes on the bottom, allowing for easy installation inside devices or enclosures. The overall design is simple and practical, balancing safety and durability, making it ideal for consumer electronics, DIY projects, teaching experiments, and more scenarios.