SOK Battery is a manufacturer and supplier of lithium iron phosphate batteries (LifePO4). Established five years ago by a team of 3 engineers from CALB. SOK have provided their satisfied customers with more than 130,000 pieces of cells and 14,000 sets of battery packs. SOK designs their battery management system (BMS), assembles and produces the battery packs by themselves. SOK have also established cooperation with a leading battery manufacturer to sell LiFePO4 cells and a complete solar or off grid application system completely designed by SOK.