For the purposes of this chapter, “lead-acid battery” means any battery which is primarily composed of both lead and sulfuric acid, with a capacity of six volts or more, and which is used for any of the following purposes:
(a) As a starting battery which is designed to deliver a high burst of energy necessary to crank an engine until it starts.
(b) As a motive power battery which is designed to provide the sources of power for propulsion or operation.
(c) As a stationary standby battery which is designed to be used in systems where the battery acts as a source of emergency power, serving as a backup in case of failure or interruption in the flow of power from the primary source.