10440 Battery Case Attachment For SONY BP-2EX D-88 D-66 DT-66 D-303 D-515 The black battery is for comparison only and is not included Dear customer, since it is 3D printing, the color of the battery box may be sent randomly, it may be gray or black, or other colors The battery case contains two 10440 batteries, totaling 1600 mAh. It should be noted that this cylindrical battery is connected in parallel. So when installing, the positive and negative poles of the two batteries are in the same direction. In addition, the original charger cannot be used for cylindrical lithium batteries. You need to remove the battery. Use a charger dedicated to cylindrical lithium batteries. We will provide a charger 3D printing requires production queuing time, usually we ship items in about a week Dear customer, I'm sorry, because 3D printing is not as perfect as traditional plastic products. If you receive the items and have any questions, please leave a message to me. Please don't worry, the items are guaranteed, thank you 3D printing material can withstand high temperatures up to 65?, 149? please pay attention to the temperature