["Board specially for which allows use mobile form\n· Battery capacity: 3000mAH; Current Rating: 1.8A\n· Output voltages (without load): 5.1 V\n· Two USB outputs, the other for the builtin LCD screen\n· Comes with mounting rack screws and nut, so can stack board in the module\nTechnical details\nintroduction\nBoard for 3B especially, allowing the masterboard to up to 9 hours. It is not just the supply; This board with 2 Type-One USB port one power supplies for the other for the LCD inbuilt display.\nThe module integrates Battery charge chip, power management chip chip. And it is developed in strict accordances with the size of the HATinternational expansion board, use only simple install multiple layer board\n\nspecifications:\nThe capacity of the battery: 3000mAH\nMost discharge current: 1.8A\noutput voltages: 5.1V\nStandard load current / voltages: 1.0A / 5.0V\nCutoff voltages to fully charge battery: 4.18V-4.20V\nSize: 8.5x4.5/3.35\"x1.77\"\n\nPackage\n1PC Battery Expansion Board (with lithiumed battery)\n4PCS impasses \n4PCS Screw\n4PCS Nut"]