3.7V Lithium Polymer Rechargeable Battery for MP3 GPS Recording Pen LED Light

3.7V Lithium Polymer Rechargeable Battery for MP3 GPS Recording Pen LED Light. Custom Manufacturing: Full customization, minor customization, and flexible customization available based on samples or designs. High Production Capacity: Monthly capacity exceeds 3.5 million batteries with 200 advanced machines for stable delivery. Comprehensive Safety Protection: Features overcharge protection, thermal cut-off, explosion-proof valve, and over-discharge protection. Wide Application Range: Suitable for medical devices, portable speakers, wearable devices, electric vehicles, and smart home products. Grade A Cell Quality: Utilizes standard Grade A cells ensuring high performance and reliability for all battery models. Long Cycle Life: Offers 300 to 400 charge-discharge cycles for durable and long-lasting energy solutions. Global Certifications: Certified with MSDS, CE, UL, KC, CB, IEC, and UN38.3 for safe international export. Experienced R&D Team: Core team has over 20 years of experience in electrochemical field and advanced battery processes.