9
Transformers [electricity]; Distribution transformers; Electronic transformers; Electrical reducing transformers; Voltage transformers; Electric voltage transformers; Electric current transformers; Step-up transformers; Impedance transformers; Electrical transformers [for telecommunication apparatus]; Mains transformers (Electric -); Electronic power transformers; Capacitive voltage transformers; Battery jars; Batteries; Rechargeable batteries; Batteries, electric; Battery chargers; Lithium ion batteries; Vaporizer batteries; Batteries for phones; Battery adapters; Battery compensation chargers; Car batteries; Batteries for vehicles; Chargers for electric batteries; Charging stations for electric vehicles; Electric batteries for powering electric vehicles; Batteries, electric, for vehicles; Batteries for electric vehicles; Portable power supplies (rechargeable batteries); Ultracapacitors for energy storage; Electronic storage media; Power units [transformers]; Power units [batteries]; Condensers [capacitors]; Fuel cells; Nickel-cadmium batteries; Rechargeable electric batteries; Electrical cells and batteries; Lithium batteries; Ignition batteries; Lithium secondary batteries; Invertor controllers; Rechargeable cells; Supercapacitors for energy storage; Electricity storage apparatus; Accumulators for photovoltaic power; Battery charging devices for motor vehicles; Car charger; Electric-car charger
37
Recharging of batteries; Recharging of batteries and accumulators; Vehicle battery charging; Charging of electric vehicles; Installation of electric and electronic equipment in automobiles; Assembling [installation] of storage systems
39
Storage; Storage of electricity; Storage of electrical plant; Arrangement of the storage of fuels; Storage of energy and fuels