Widely used in nickel-metal hydride batteries , lithium batteries , ear , power tools , battery packs , polymer batteries , power batteries and instrumentation , telecommunications , vacuum , special light bulbs and other industries It works with battery to connect batteries This welding sheet with smooth surface , no scratch or burrs , easy to weld Good welding performance , high tensile tension , low resistivity premium , it features high efficiency and stable working performance, Manufacturer: Watreketal