Third party replacement batteries are also available. The battery was originally not thought to be replaceable when a Sony spokesperson stated that the Sixaxis should operate for "many years before there's any degradation in terms of battery performance. When and if this happens, then of course Sony will be providing a service to exchange these items".[17] Later, it was revealed that the Sixaxis came with instructions on how to remove the battery and that the battery was fully removable.[18] The DualShock 3 also uses this battery.