Kc CB Certified 3.7V 650mAh 802040 Lipo Battery – Premium OEM/ODM Solution
High-performance lithium polymer battery with ultra-compact 802040 dimensions (8.0mm × 20mm × 40mm), ideal for space-sensitive applications like wireless earbuds, mini drones, and IoT devices. CB-certified for global compliance, ensuring safety and reliability. Features precise LiPo cell construction with stable 3.7V output and 650mAh capacity for extended runtime. Custom OEM/ODM support available—perfect for bulk procurement. Engineered with high-density polymer electrolytes for superior energy efficiency and minimal self-discharge. Globally sourced wholesale pricing, unbeatable for bulk orders. Trusted by manufacturers worldwide for wearables, medical devices, and portable electronics.