Features: 1.Lithium battery expansion board for Raspberry Pi, onboard SW6106 mobile power chip, can provide stable 5V voltage output, and supports two?way fast charging 2.This product has longer battery life and stronger load capacity, and its body size is more compatible with for Raspberry Pi B/A+/B+/2B/3B/3B+/4B 3.Support multiple fast charging protocols such as PD/QC/FCP/PE/SFCP 4.Onboard lithium battery protection circuit, with anti?reverse connection, anti?overcharge and short?circuit protection functions 5.With onboard fast charge and battery indicator, it is convenient to check the working status of the board and battery 6.Onboard PH 2.0 lithium battery interface, which can be connected to the matching 3.7V 3000mA large?capacity lithium battery (MSDS certification) specification:Item Type: Lithium Battery Expansion Board for Raspberry Pi Material: PCB Battery: 3.7V 3000mAh lithium battery(shipped with battery) Output Voltage: 5V Charging Voltage: 5V Applicable Battery: 3.7V lithium battery (full charge is 4.2V) Product Size: Approx. 65 x 56.5mm / 2.6 x 2.2in Through Hole Diameter: Approx. 3mm / 0.1in How to Use: 1. Power supply Connect to for Raspberry Pi to Use: Step1: Connect the matching lithium battery to the 2.0mm battery socket Step2: Click the Standby button to output 5V Step3: Insert the GPIO port of the for Raspberry Pi to power the for Raspberry Pi Use for Other Equipment: Step1: Connect The Supporting Lithium Battery To The 2.0mm battery socket Step2: Click the Standby button to output 5V Step3: Connect USB cable to other equipment through USB Type-A interface; or connect 5V, GND to other equipment through jump wire. 2. Charging Ordinary Charging: Step1: Connect the matching lithium battery to the 2.0mm battery socket, Step2: Connect the charger to Micro USB or USB Type-C through the USB cable to achieve normal charging Fast Charging: Step1: Connect the matching lithium battery to the 2.0mm battery socket Step2: Connect the charger that supports fast charging to the USB Type-C interface through the USB cable Step3: If the fast charge indicator is on, it enters the fast charge mode, otherwise your charger does not support the fast charge mode PackageList: 1 x Accessory Package 1 x Lithium Battery 1 x For Raspberry Pi Lithium Battery Expansion Board