Features:

• Rechargeable lithium-ion battery
• Compatible with Canon EOS 5D, 30D, 20D, 10D, D60, D30, Pro90 IS, Pro1, G1, G2, G3, G5 and G6 models
• Keep a spare battery ready to capture once in a lifetime shots

Editor Reviews:

Product Description:
powers select Canon digital cameras and camcorders * rated at 7.4V, 1390mAh * 1-9/16"W x 2-3/16"H x 7/8"D * weight: 2.9 oz. * warranty: 30 days

Rating : - Small but mighty
The Canon BP511A 1390mAh Lithium Ion Battery rocks. If you shoot with the grip, fabulous! If you just want one as a backup so that you can shoot longer, fabulous! In short, fabulous!