as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
edit the following sentence to correct any grammar mistakes and make it more concise: 

"the phone has a not charging issue because it ran out of battery."
user
the phone is not charging because it has run out of battery.
assistant