Performance of the OM-D batteries from Olympus is fabulous. With me succeed around 1000 shots (without flash) on a single charge. Together with a second battery in the handle, can no longer happen. Therefore you have to give the battery 5 stars. The pricing policy of the producers, however, sometimes been questionable. For less than half you get a battery with charger (but with 1/3 less capacity) from a third party. This function properly in the camera. As a little gimmick of Olympus, but can be generally any third-party batteries in original charger.
