A:Answer Thank you for your question. To replace the batteries in your Best Buy essentials Lightweight Bluetooth Optical Mouse, follow these simple steps: First, locate the battery cover on the bottom of the mouse and gently slide or lift it off. Next, insert the two AAA batteries into the battery compartment, making sure to align the positive (+) and negative (-) ends of the batteries with the corresponding symbols marked on the ribbon inside the compartment. Once the batteries are correctly inserted, replace the battery cover until it clicks or slides securely back into place. Finally, ensure the power switch on the bottom of the mouse is set to the "ON" position to start using your mouse again. If you have any other questions or need further assistance, feel free to ask! - Mae | BestBuy Essential Support
