Low Average rating because after having made several cycles charge / discharge to optimize the rendering of this battery, it turns out that the usage time does not exceed 2H. The power announced, 5200mAh, is not at the rendezvous. I feel that it's a 4400mAh, it gives the impression. Apart disassemble / open this battery, there is no other means of knowledge to verify the cells. It would require a certificate justifying, control and accuracy of the elements of this kind of product, joined in the order / delivery. Link to this product (no longer supplied)
