
OEM 3.7V 70mAh 351025 Polymer Lithium Battery Rechargeable Battery for Bluetooth Earphones. Custom Manufacturing Available: Full customization from samples, designs, and flexible options for tailored battery solutions. Comprehensive Certifications: Products certified with CE, UL, KC, CB, IEC, UN38.3, and MSDS for global export compliance. High Production Capacity: Monthly output exceeds 3.5 million cells with 200 advanced machines ensuring stable supply. Advanced Quality Control: Strict system covering IQC, IPQC, OQC, and 100% finished product inspection for safety. Long Cycle Life: Durable performance with 300 to 400 charge-discharge cycles for reliable long-term use. Multi-Application Range: Suitable for medical devices, wearables, toys, smart homes, and various portable electronics. Grade A Cells: Utilization of standard Grade A cells ensuring high quality and consistent performance. Experienced R&D Team: Over 20 years of electrochemical expertise driving innovation and technical support.