So - the battery for my Samsung phone is quite okay - can not complain about short shelf life ... possibly is also the fact that cell phone is an older model. Anyway, the price / performance ratio as well as the settlement was perfectly fine. Would take into account the shop at any time. Am, however, in the meantime finally switched due to a reasonably-priced Vodafone offer on a smartfone and keep the old phone as an emergency supply.