The batteries do not last longer than others by conspicuous used previously. The especially long tab to the claim convenient to use, I can not absolutely confirm to be. To them that is deducted you will finally be with his fingertips as close to the battery, there is little difference in comparison to a classic short strap. By contrast, the packaging for these 6 small cells, not least because these tabs, get enormous. Bottom line, the batteries comply with their duties as expected.
