It is a container full of energy, using conversion of electrical energy into a chemical (charging process), acumulate part of that energy. A revers process is going on when you connect a vehicle (by terminals) to its battery poles, i.e. conversion of chemical energy to a electrical energy (discharge process).
Traction battery is a lead acid battery for starting and drive of transport vehicles (forklifts, electric cars) or boats with electric drive, etc.
They are recovery chemical source of electric energy and they serve as a back up source of electric energy for different purposes – telecommunication installations, emergencie centers, systems of survelliance in industrial plants, power plants, power substations, etc.
Check and testing is designed to tell us things we want to know about individual consumer cells and batteries to substantiate if the customer claims will be accepted or not.