Fangrui Product Details 1.onboard Sw6106 Chip, Supports Bi-directional Quick Charge, Supports Multi Quick Charge Protocols Such As Pd / Qc / Fcp / Pe / Sfcp2. Lithium Battery Protection Circuits, Offers Reverse Protection, Over Charge Protection, And Short Circuit3.onboard Indicators: Fast Charging, Power Capacity4.ph 2.0 Battery Connector, For Connecting The 3.7 V 3000ma High Capacity Li-polymer Batteryoutput Voltage: 5 Vcharging Voltage: 5 Vapplicable Battery: 3.7 V Li-polymer Battery (4.2 V When Fully Charged)dimension: 65.0mm X 56.5mmmounting Hole: 3.0mmmaterial:metal + Pcbcolour:as Shownpackage Contents:1 * Li-polymer Battery Hat1 * 3.7v 3000mah Li-polymer Battery1 * Rpi Screws Pack (2pcs)only The Above Package Content, Other Products Are Not Included.note: Light And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.