Canon Knowledge Base - Replacing the Date Battery for the PowerShot A710 IS.
Amazon.com : Canon PowerShot G16 12.1 MP CMOS Digital Camera with 5x Optical Zoom and 1080p Full-HD Video Wi-Fi Enabled : Point And Shoot Digital Cameras : Electronics
Canon Powershot - Low Battery Icon Fix - YouTube
Canon Knowledge Base - Procedure for using the optional rechargeable battery kit PowerShot A610, A620, A700, and A710 IS