In this paper, the possible reasons for Cd-Ni secondary battery to be out of work were discussed，and the nonserviceable Cd-Ni secondary batteries were successfully restored.
Maintenance includes painting, replacing damaged doors, frames and other components, window frames, sashes and casings, replacement of nonserviceable hardware and re-glazing where necessary.
电池失
的原因,
了修复失
、
损坏的门、框架和其
组件、窗框、窗扇和外壳、
法
