Please note that the power marked on the packaging is 1200mAh, while on batteries, it is only 700mAh. After consultation with the seller, this one told me they indeed have a packaging problem, and they can not exchange me ... But they continue to sell the product !! Finally, the product they repay me without my returns them, so they are at fault! And when I look at the view, this is not the first time they do this !!