Penal Code § 537f
CHAPTER 8. False Personation and Cheats
No storage battery composed in whole or in part of a used container, or used plate or plates and intended for use in the starting, lighting or ignition of automobiles, shall be sold or offered for sale in this State unless: the word “Rebuilt” together with the rebuilder’s name and address is labeled on one side of the battery in letters not less than one-half inch in height with a one-eighth inch stroke.
Any person selling or offering for sale such a battery in violation of this section shall be guilty of a misdemeanor, punishable by a fine not exceeding two hundred fifty dollars, or by imprisonment in the county jail for not more than six months, or by both such fine and imprisonment.