Very fast delivery shipped across the Channel. Completely replaces the BP-511A - 7.4v 1390mAh (Li-ion) 1300mAh 9.7Wh Min - provided by Canon 50D with. Ref. this battery: AboutBatteries.com, 7.4v 1620 mAh / 12.0Wh. Manufactured in Japan, good manufacturing.