Britney Spears will face no charges after an allegation from her housekeeper that Spears slapped a phone out of her hand.
A possible misdemeanour battery charge was declined based on insufficient evidence that a crime had occurred and lack of injury to the housekeeper or of significant damage to the phone, Ventura County District Attorney Erik Nasarenko said on Wednesday.
The woman had called authorities after the August 16 dispute with Spears over veterinary care of Spears' dog, Nasarenko said.
Spears has a home in Thousand Oaks, California northwest of Los Angeles.
When it was revealed sheriff's deputies were investigating, Spears' lawyer Mathew Rosen called the incident "overblown" and "manufactured".
The district attorney's announcement came a day after Rosen and Spears filed new documents alleging that her father was keeping his role in the conservatorship that has controlled her life and money for 13 years because he was trying to earn some $US2 million ($A2.7 million) more in fees.
James Spears' representatives have repeatedly said his dealings in the conservatorship have always been upright and in the best interests of his daughter.
Australian Associated Press