I often read the positive or negative feedback before purchasing a product on Amazon, in this case it triggered my purchase. In fact the product is consistent with what I had read, the battery's height helps cool the PC and the duration of use is in line with my expectations. This allowed me to re-route an old laptop stored for some time in a closet cheaply !!! I did not set the maximum rating because Amazon could propose the resumption of the old battery for recycling.