The battery is optimally matched to the camera and holding after the first charging more than 200 recordings by. That will certainly be even more after 2-3 charging cycles.
A no-name battery is not an option for me. The risk of giving up by the battery or other malfunction my digicam leaking the mind is just too big to me.
In the build quality of this original batteries of Canon, I have no concerns.
My tip for last: Buy would set him back to me.