The German manufacturer HANWHA Q CELLS began producing solar batteries in 2001. HANWHA Q CELLS pays special attention to the quality of its products, which is why it stands out for having the longest defect warranty period. A special quality control centre has been established that tests every HANWHA Q CELLS product. HANWHA Q CELLS solar batteries come with a 12-year defect warranty and a 25-year performance warranty.
Manufacturer's website: www.q-cells.com