For me it was not as positive as in the other reviews. Although the delivery was fast and the battery has been recognized by the Squeezebox radio immediately, however, lasted only a few minutes by. At first I thought it was because the battery (as usual) would need to be charged and discharged a few times to give full effort, but when fully charged after about 20x and full discharge of the battery still after 30 made minutes limp, I have sent him back. The purchase price was refunded without any problems.