International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 21

Secondary cells and batteries


TC 21 Scope

TC 21

To provide standards for all secondary cells and batteries related to product (dimension and performance), safety (including marking and labelling), testing, and safe application (installation, maintenance, operation) irrespective of type or application or configuration (hybrid, stand alone, module).

Main applications are:

• automotive (car, motorcycle, truck) for starting, lighting, ignition, start/stop

• industrial (telecom, UPS, reliable power supply and traction)

• electrical vehicles (full electrical vehicle, hybrid car, bicycle)

• portable (computer, tool, lamp)

• onboard batteries (aircraft, railway, ship, motor-home)

• energy storage (renewable, on- grid and off-grid).

All electrochemical systems are considered such as Lead acid, Nickel based (NiMH, NiCd) and Lithium based. New battery technologies and chemistries such as flow batteries and High temperature batteries (e.g. sodium sulfur, sodium nickel chloride) are included.

The work is shared between TC 21 and SC 21A according to technologies and applications.

For standardization of applications and system integration, TC 21 is cooperating with the responsible Committees, TC 9, TC 34, TC 69, TC 82, TC 105, TC 116, TC 120 and ISO TC22/SC21.

Further information

Strategic Business Plan
PDF file
TC 21 Officers