Sony  CECHZK1UC, PlayStation 3 Wireless Qwerty Keypad, PS3,MK11-3023 , battery replacement Replaces  batteries MK11-3023 To fit  Keyboard Sony  CECHZK1UC, PlayStation 3 Wireless Qwerty Keypad, PS3 Wireless Qwerty Keypad   This 3.7v battery is designed  with a capacity of 570mAh , it is manufactured by our ISO 9001 certified supplier to a very high standard. As we supply a very large range of batteries we cannot always have stocks of the slower moving lines as batteries have a shelf life and we insist on quality control for our customers, which may mean slightly delayed shipment date, where this is necessary you will be advised by email. Battery Type: Li-ion Battery Voltage: 3.7V Battery Capacity: 570