Battery Pack BP-511A
High Capacity, rechargable Lithium-Ion battery.
When used with camcorders, the BP-511 gives you a maximum recording time of 2 1/2 hours using the viewfinder, or 2 hours using the LCD screen.
When used with the EOS D-series cameras, the battery is capable of approximately 300 shots on a single charge.
Canon Battery Pack BP-511A, 1390 mAh, 7.4 V, Lithium-Ion (Li-Ion)
Canon Battery Pack BP-511A. Battery technology: Lithium-Ion (Li-Ion), Battery performance: 1390 mAh, Battery voltage: 7.4 V