We have had a load of travel kits from Olympus and Panasonic Lumix that contain a case and spare battery. As I have the XZ-1, I bought the 'Olympus Travel Accessory kit 50B' which costs £29.99. Now just a battery alone is over £40 so this is a cheap way of getting a replacement battery. After staff discount i only paid £17.99, What a result!!