2020BS EN 61951-2:2017 Secondary cells and batteries containing alkaline or other non acid electrolytes. Secondary sealed cells and batteries for portable applications. Nickel-metal hydride
2011BS EN 61951-2:2011 Secondary cells and batteries containing alkaline or other non-acid electrolytes. Portable sealed rechargeable single cells. Nickel-metal hydride
2003BS EN 61951-2:2003 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Nickel-metal hydride