"portable battery’ means a battery that is sealed, weighs 5 kg or less, is not designed specifically for industrial use and is neither an electric vehicle battery, an LMT battery, nor an SLI battery;"
What's an LMT or SLI battery? Well:
"light means of transport battery’ or ‘LMT battery’ means a battery that is sealed, weighs 25 kg or less and is specifically designed to provide electric power for the traction of wheeled vehicles that can be powered by an electric motor alone or by a combination of motor and human power, including type-approved vehicles of category L within the meaning of Regulation (EU) No 168/2013 of the European Parliament and of the Council1, and that is not an electric vehicle battery;"
and
"‘starting, lighting and ignition battery’ or ‘SLI battery’ means a battery that is
specifically designed to supply electric power for starting, lighting, or ignition and
that can also be used for auxiliary or backup purposes in vehicles, other means of
transport or machinery;"
"portable battery’ means a battery that is sealed, weighs 5 kg or less, is not designed specifically for industrial use and is neither an electric vehicle battery, an LMT battery, nor an SLI battery;"
What's an LMT or SLI battery? Well:
"light means of transport battery’ or ‘LMT battery’ means a battery that is sealed, weighs 25 kg or less and is specifically designed to provide electric power for the traction of wheeled vehicles that can be powered by an electric motor alone or by a combination of motor and human power, including type-approved vehicles of category L within the meaning of Regulation (EU) No 168/2013 of the European Parliament and of the Council1, and that is not an electric vehicle battery;"
and
"‘starting, lighting and ignition battery’ or ‘SLI battery’ means a battery that is specifically designed to supply electric power for starting, lighting, or ignition and that can also be used for auxiliary or backup purposes in vehicles, other means of transport or machinery;"