SmallRig NP-F Battery Adapter Plate Lite 3018 is designed to provide greater battery life for your camera rig via a Sony NP-F battery. It provides different output ports, including a 12V DC (5.5/2.5mm) output port and a 7.4V DC (5.5/2.1mm) output port. It features an LED indicator that will turn red when the battery level is less than 30 percent. When the indicator flashes, it means the battery level is less than 10 percent, and you need to replace the battery. The plate features a rubber pad on the bottom for a more stable installation. Note: 1. Please do not use it in a damp environment to avoid a short circuit. 2. This product does NOT include charging cables or an NP-F battery. 3. Please note the product has no built-in battery. Compatibility: Sony NP-F battery Package Includes: 1 x NP-F Battery Adapter Plate 2 x 1/4?-20 Mounting Screw 1 x Allen Wrench Product Dimensions: 94 x 18.7 x 45.9mm Package Dimensions: 106 x 98.5 x 34mm Net Weight: 48.5g?5g Package Weight: 98.5g?5g Material(s): ABS+PC