Power
BP-820 The intelligent lithium ion battery tells you exactly how much battery charge you have left. 
BP-828 Shoot for even longer with this high capacity intelligent lithium ion battery, that tells you exactly how much battery charge you have left. 
CG-800 The CG-800 is an accessory for charging your batteries without your camcorder. You can place the battery in the cradle and the LED indicator will let you know when the battery is fully charged.