In law, battery is the intentional, nonconsensual, harmful or offensive physical contact of one person with another. It is both a crime the government can prosecute and a civil wrong the victim can sue over, and the legal threshold is lower than most people expect: no injury is required, and the contact can be with your clothing or an object you are holding rather than your skin. That single definition does a lot of work, so the pieces are worth taking apart.
Battery Is Not the Same as Assault
Casual usage treats “assault and battery” as one thing. The law treats them as two. Assault is causing someone to reasonably fear that harmful contact is about to happen. Battery is the contact itself.1Legal Information Institute. Assault and Battery
Someone who raises a fist and lunges at you has committed assault. If the fist lands, that is battery. You can have one without the other. A punch that misses is assault with no battery. A shove from behind, with no warning, is battery with no assault. Many states fold the two into a single statute, but the distinction still shapes what a prosecutor has to prove and what a civil plaintiff can recover.
What Has to Be Proven
Every battery case, criminal or civil, comes down to three elements. If any one fails, the claim fails.
Intent
Battery is a general-intent offense. The person has to have intended the physical act, not any particular injury.2Legal Information Institute. Battery Someone who deliberately swings an arm and connects has met the intent element even if they never meant to break a bone. The movement must be voluntary; the harm need not be planned.
A related doctrine called transferred intent widens the net. If someone aims a punch at one person and strikes a bystander instead, the intent follows the fist.3Legal Information Institute. Transferred Intent The thrower is liable to the bystander even though they never meant to touch that person at all.
Contact
The contact does not have to be skin-to-skin. Grabbing someone’s coat, knocking a phone out of their hand, or hitting a bag they are carrying all qualify. Clothing and items closely connected to the body are treated as extensions of the person.2Legal Information Institute. Battery That rule closes an obvious loophole: snatching a cane from an elderly person causes real harm, and no bare skin was ever touched.
Harmful or Offensive
The contact must be harmful or offensive, judged by an objective standard. Would a reasonable person with ordinary sensibilities find this contact offensive?2Legal Information Institute. Battery That standard keeps accidental bumps on a crowded sidewalk out of court while still covering genuinely invasive contact. A light tap on the shoulder to get someone’s attention is nothing like an unwanted sexual touch or a forceful shove.
No physical injury is required. The offensive contact is itself the legal harm. Spitting on someone or groping them is battery with or without bruises.
Criminal Battery and Civil Battery
The same act can produce two separate legal cases, run on different tracks, by different parties, under different rules.
Criminal battery is brought by the government. The case moves forward whether or not the victim wants to press charges. The prosecution has to prove every element beyond a reasonable doubt, the highest standard in the legal system.4Legal Information Institute. Beyond a Reasonable Doubt Simple battery is usually a misdemeanor. Most states authorize up to one year in county jail, fines reaching several thousand dollars, and probation of one to three years, often paired with anger management, community service, and restitution. Under the federal system, simple assault carries up to six months, and assault by striking or wounding carries up to one year.5Office of the Law Revision Counsel. 18 USC 113 – Assaults
Civil battery is brought by the victim, called the plaintiff, against the person who did the contact, called the defendant. The goal is money, not jail. The plaintiff only has to prove the case by a preponderance of the evidence, which means showing the battery more likely happened than not.6Legal Information Institute. Preponderance of the Evidence That is a far lower bar than the criminal standard. It is why someone can be acquitted in criminal court and still owe the victim money in civil court on the same facts.
Civil damages come in layers. Compensatory damages cover measurable losses: medical bills, physical therapy, lost wages, ongoing care. Non-economic damages cover pain, emotional distress, and loss of enjoyment of life. Punitive damages are something different; they punish the defendant and deter similar conduct, and courts generally reserve them for intentional or reckless behavior.7Legal Information Institute. Punitive Damages A deliberate, unprovoked attack on a stranger is the kind of conduct that can trigger punitive damages. A mutual bar scuffle usually will not.
Because the two tracks are independent, both can run at once. Criminal defense lawyers often tell clients to invoke the Fifth Amendment in a parallel civil deposition until the criminal case resolves, because testimony on one side can surface on the other.
When Battery Becomes a Felony
Simple battery stays a misdemeanor in most places. Certain circumstances push it into felony territory, where sentences are measured in years rather than months.
A Weapon Is Used
Battery with a dangerous weapon almost always triggers felony charges. “Dangerous weapon” reaches well past guns and knives. Courts have classified rocks, bricks, bottles, and even boots as deadly weapons when used to inflict harm.8Legal Information Institute. Aggravated Battery Under federal law, assault with a dangerous weapon with intent to cause bodily harm carries up to ten years.5Office of the Law Revision Counsel. 18 USC 113 – Assaults
The Injury Is Serious
Battery that causes broken bones, concussions, or injuries needing surgery moves to a higher tier. Federal law provides up to ten years for assault resulting in serious bodily injury.5Office of the Law Revision Counsel. 18 USC 113 – Assaults State felony battery convictions commonly bring fines that can exceed $10,000 on top of prison time.
The Victim Is in a Protected Category
Attacks on law enforcement officers, firefighters, paramedics, hospital workers, and the elderly carry automatic enhancements in most jurisdictions. What would be a misdemeanor against an ordinary stranger often becomes a felony. Federal sentencing treats assaults on federal officers more severely as well, with maximums reaching three years for simple assault and ten years when a dangerous weapon is involved.9United States Sentencing Commission. Amendment 614
The Attack Is Motivated by Bias
When battery is motivated by bias against the victim’s race, religion, national origin, gender, sexual orientation, gender identity, or disability, federal hate crime law adds another layer. Under 18 U.S.C. ยง 249, willfully causing bodily injury because of a victim’s actual or perceived identity can bring up to ten years in federal prison. If the attack causes death, or involves kidnapping or sexual assault, the maximum rises to life.10Office of the Law Revision Counsel. 18 USC 249 – Hate Crime Acts Most states have parallel hate crime statutes with their own enhancements.
Defenses
Not every unwanted touch produces liability. Several defenses can defeat a battery claim entirely.
Self-Defense
This is the most common defense. Three things have to line up: the threat was imminent, the force used was proportional, and the person claiming self-defense was not the initial aggressor.11Legal Information Institute. Self-Defense “Imminent” is where cases usually fall apart. If someone shoved you five minutes ago and you track them down to shove them back, that is retaliation. Proportionality is the other common trap. Responding to a slap by pulling a knife will almost always destroy the defense. Some states require retreat if you can safely do so before using force; others follow stand-your-ground rules that remove that duty.
Consent
Consent is a complete defense. It can be express, such as signing a surgical waiver, or implied by circumstances.2Legal Information Institute. Battery Stepping into a boxing ring or onto a rugby field implies consent to the physical contact that is a normal part of the sport. The limits matter as much as the rule. Players consent to hard tackles, not to being punched after the whistle. Consent obtained through fraud or coercion is not consent at all.
Defense of Others
The same logic that justifies protecting yourself extends to protecting someone else. You need a reasonable belief that the other person faced an imminent threat and that the force you used was proportional. Misreading the situation is risky; tackling someone who turns out not to have been the aggressor can leave you on the wrong end of a battery claim yourself.
Medical Battery
Medical battery is a corner of this area worth flagging because patients regularly misunderstand it. It happens when a healthcare provider performs a procedure the patient never consented to. The textbook example: a patient consents to surgery on the right knee and the surgeon operates on the left. Even if the left knee needed the surgery and the work was done perfectly, performing it without authorization is battery.
This is not the same as a lack of informed consent, which is treated as medical malpractice. In an informed consent case the patient agreed to the procedure but was not adequately told about the risks, alternatives, or outcomes. Battery turns on a simpler question: did the patient authorize this specific procedure? If not, the provider is liable no matter how skillfully it was done.
Deadlines for Filing
Both tracks have time limits, and missing them usually ends the case regardless of how strong the evidence is.
Civil battery lawsuits typically have to be filed within two to four years of the incident, depending on the state. A few states run shorter or longer. The clock can pause in some situations. If the victim is a minor, the deadline generally does not start until they turn 18. A discovery rule may apply when the injury is not immediately apparent; the clock then starts when the victim discovers the harm or reasonably should have.
Criminal filing deadlines also exist. They are generally shorter for misdemeanors, often one to three years, and longer for felonies. Some states set no statute of limitations at all for the most serious aggravated battery offenses. Those deadlines are the prosecutor’s to track, but they can still matter to victims who delay reporting.