Lithium Battery, Polymer Battery, Ni Mh Battery manufacturer / supplier in China, offering Pl602040 3.7V 450mAh Medical-Grade High Energy Density Li-Polymer Battery Adaptive Thermal Control, Pl 602040 3.7V 400mAh Medical-Grade High Energy Density Li-Polymer Battery 24-Hour Runtime, Pl 602030 3.7V 300mAh Ultra-Slim Li-Polymer Battery 24h Wearable Power Triple Certified and so on.