BATTERY : The unlawful beating or use of force on a person without his consent.
A unit source of D.C. voltage consisting of a plurality of voltaic cells electrically connected in series, parallel, or both, to increase available voltage or power from a single cell. "Plural batteries" include a combination or association of two or more structurally dependent, or independent, battery units.
Bodily harm to another by an act done with intent to cause bodily harm to that person or another without the consent of the person so harmed. The threat to use force is an "assault;" the use of it is a battery, which usually includes an assault.
Physical contact intended to harm someone. Threat to use force is assault; use of it is battery, which usually includes an assault. Aggravated battery is unlawful use of force with unusual or serious consequences, e.g., use of a dangerous weapon.
Battery has been defined 18 different ways in documents like Fifth District Legal Terminology, USPC Consolidated Glossary, USPC Consolidated Glossary, and 7 more.