Final answer:
A salesperson who cannot remember the charging time of a new cell phone should consult the product manual, manufacturer specifications, or seek assistance from a manager or technical support for accurate information.
Step-by-step explanation:
If a salesperson cannot remember how long it takes the new cell phone to charge, they should refer to the product's manual or specifications provided by the manufacturer. This information is typically included in the training materials or accessible via the company's internal database. If these resources are not available or insufficient, the salesperson should contact a manager or a technical support team who can provide the correct details from a reliable source. Ensuring accurate information is vital for maintaining professional credibility and providing excellent customer service.