1、The power module is designed to fit for Raspberry Pi motherboard, allowing it to work offline for up to 9 hours. 2、There are 2 USB‑A ports on the board, one can power the Pi motherboard and the other can power the integrated LCD screen. 3、A simple copper pillar and for Raspberry PI motherboard can be used for cascading installation. 4、Fine workmanship, long service life, not easy to damage, can be used for a long time. 5、Establish strict quality control standards and improve the design to increase durability. 1 x Lipo Battery Expansion Board12 x Screw Accessories Condition: 100% Brand NewItem Type: Lipo Battery Expansion BoardMaterial: PlasticColor: As picture shownBattery Capacity: 3800mAHMaximum Discharge Current: 1.4A No-load Output Voltage: 5.1V ± 0.1VStandard Charging Current/voltage: 1.0A@ 5.0VFull Cut-off Voltage of Lithium Battery: 4.18V - 4.2VFitment: Fit for Raspberry Pi3 CHG LED Function:On: The charger performs constant current charging.Off: The charger performs floating charge until the lithium battery is fully charged.ON LED Function:On: USB-A interface outputs 5VOff: The USB-A interface has no voltage output.