A Canon PowerShot is very picky when using batteries. Many manufacturers advertise here with utopian capacity of more than 3000mAh. In practice, most batteries are not empty, but offer after 2 days of storage at no longer the constant current with a digital camera to be able to make only 10 shots. This SANYO batteries do it. As it will be seen looks after a year or many charge cycles. I recommend these batteries and also appreciate the storage as a useful accessory.