Coremax Technology located in Shenzhen city of China. As a professional Battery enterprise, it concentration on Lithium ion and lithium polymer battery and Lithium battery packs. With latest technology, Coremax is capable to provide ultra-thin batteries, the battery is produced from 0.5mm to 2mm; For 18650 battery pack : wide range vot from 3.7v to 48v, capacity from 30mAh to 10000Mah. Coremax provide battery idea, design, solutions, manufacturing lithium ion battery for all kinds of applications and products. like medical device and power, power tools, garden tools, electric vehicle, electric bikes, lightings, home appliances and power storage. visit coremax-tech.com for more information.