A man accused of beating his partner so severely she was placed on life support has been charged with murder.
Grandmother of five Linda Locke died in Westmead Hospital on Tuesday, two days after being taken there with head injuries, a collapsed lung and a bruised face.
Her long-term partner Jamie Christopher Walker was initially charged with assault occasioning actual bodily harm but police on Thursday charged him with murder.
Ms Locke, 51, is the 34th woman in Australia to die from violence this year, according to the advocacy group Counting Dead Women.
She had lived in the Quakers Hill home where she was found battered and bruised on Monday with 46-year-old Walker, her partner of about five years.
It's believed they were arguing before she was assaulted.
Hospital staff notified police about her horrific injuries.
Walker, who is on a methadone program, was denied bail following a brief appearance on the assault charge at Blacktown Local Court on Tuesday.
He remains in custody and is due before Penrith Local Court on June 26.
An average of two women per week have died in Australia as a result of violence this year.