The battery is good. Our battery scissors again has the lead and the battery life as it had the new device. Battery could be changed without any problems from me. Tip: a tab also I had to narrow. (Already described, but did not bother me, because my performance of the battery were more important.) The tab you get the best with a good diagonal cutters narrow. Approximately 1.5 mm "from the side" abgeknippst "- and good!