High-Capacity 503759 Li-Polymer Battery for Small Digital Devices
Ultra-lightweight and compact 503759 size with precise dimensions for seamless integration into small electronics. Premium-grade li-polymer cells ensure stable 3.7V nominal voltage and 4.2V full charge, delivering reliable 1200mAh power. Advanced safety features include built-in overcharge/discharge protection and puncture-resistant casing for extended lifespan. Ideal for mini drones, handheld gadgets, medical devices, and DIY electronics projects. Engineered with high-purity electrodes and ultra-thin laminated layers for superior energy density and heat dissipation. Bulk pricing available—global wholesale supplier with factory-direct logistics.