For NiMh/NiCd battery pack voltage 2~40 cells series, now we have 7 series,nearly 30 models chargers for user to choose. capacity range 700mAh ~20Ah, these chargers can be used in the e-bike, RC Toy, mobile power-tool , mobile light/lamp and so on. These products use professional MCU to manage whole charging process. We use -delta V, max V, +delta T, max T and timer termination conditions to handle battery charging data. The chargers meet CE and ROHS,Most goods have the safty approved of UL and CUL