The Canon BP-A30 is a rechargeable lithium-ion battery pack for the EOS C300 Mark II, C200 and C200B, providing 45 watt-hours of power and compatible with Canon's Intelligent Battery system. A removable contact cover keeps the contacts clean and helps prevent short-circuit discharge when the battery is off the camera, and a push button activates on-battery power indicators to check charge level without mounting it.