Features: 1.Large capacity, high?efficiency charging and long?lasting battery life, always fully charged to protect you. 2.One?handed control, fine texture, comfortable hand feel, know the power well at any time. 3.Synchronous boost, output power can up to 22.5W, efficiency up to 95%, automatic load detection/light load detection, support low current mode. 4.Output fast charge protocol support for PPS/PD3.0/PD2.0/QC4+/QC4/QC3.0/QC2.0/AFC/FCP/SCP/PE2.0/PE1.1/SFCP and low voltage direct charge. 5.Enter fast charge protocol support for PD3.0/PD2.0/AFC/FCP/SCP/PE1.1, current up to 5A, efficiency up to 96%. 6.Support 4.2/4.35/4.4/4.5V battery type, support JEITA , support temperature loop control. specification:Item Type: Battery Power Box Material: ABS Color: Black Weight: Approx. 85.0g/3.0oz Model: KA4 Input: 5V2A (Type-C,Micro Dual Input) Output: 5V2A Battery: Support 15000 mAh 4Pcs 18650 Batteries (not Included) Additional with LED Flashlight Cell Type: Liquid Lithium ion Battery (18650) (Delivered Without Battery) 1. Any USB port can support fast charging. When two or more output ports are used at the same time, only 5V is supported. 2. Fast charge s Integrated QC2.0/QC3.0 output fast charging protocol Integrated for FCP (for Huawei High Voltage Fast Charge Protocol) input/output fast charge protocol Integrated AFC (for Samsung Fast Charge Protocol) Input/Output Fast Charge Protocol Integrated SFCP (Spreadtrum Fast Charge Protocol) input/output fast charge protocol Integrate MTK PE+ 1.1&2.0 (MediaTek fast charge protocol) output fast charge protocol Integrated for USB C DRP protocol, support input and output fast charge Compatible for BC1.2/IOS/Samsung mobile phone fast charge Integrated USB Power Delivery (PD2.0/PD3.0) protocol Support PD2.0 bidirectional input/output protocol Support PD3.0 input/output, PPS output protocol Support 5V, 9V, 12V voltage range input/output PPS support 5~11V 3. Charging s The battery charging current can up to 5.0A Adaptive charging current adjustment 4. Discharge s Synchronous switch discharges 5V 2A, the efficiency reaches 95%, and supports line compensation Output current capability: 5V/3.1A; 9V/2.0A; 12V/1.5A PackageList:1 x BatteryPowerBox 1 x Baffle 1 x Screwdriver 5 x Screw 1 x Spacer Note1. Shell screw installation can be removed repeatedly. 2. This model is a non?welding?free mobile power set (circuit board + shell), a non?mobile power product, excluding the battery, and needs to be purchased separately 18650 (flat head) batteries before they can be used. Do not put the battery upside down, it will damage the motherboard, (the shrapnel is positive, and the spring is negative) please put it in correctly.