High-performance 902030 3.7V 500mAh Li-Polymer Battery with Built-in PCB

Premium lithium-polymer construction ensures stable power output and extended cycle life. Integrated PCB provides overcharge/discharge protection for enhanced safety. Ultra-thin 902030 size (9.0×20×30mm) fits compact electronic devices seamlessly.

Precision-engineered with high-density cells for consistent 500mAh capacity. Gold-plated contacts minimize resistance and improve conductivity. Flexible aluminum laminate casing prevents swelling and leakage.

Ideal for IoT devices, mini drones, medical sensors, Bluetooth headsets, and portable gadgets. RoHS-compliant and factory-certified for batch consistency. Bulk pricing available for OEM/ODM projects with same-day global shipping.