Is there a new and an old style CXS battery? One of the batteries that shipped with my CXS a few years ago flashes red when trying to recharge. It is the original style that is roughly L-shaped - a three inch part inserts into the drill and the rest attaches to the bottom of the drill. In searching for a replacement battery, I don't find this style anymore. The new ones seem to lack the L-shape. The one I have is 10.8V 1.3 Ah and I think the replacement has different specs. But the one I have is desireable because it is really light.