ขาย 5 V / 2 . 1 A Discharge Boost 3 . 7 V 4 . 2 V Dc - Dc Diy อุปกรณ์เสริมคอมพิวเตอร์ ราคาที่ดีที่สุด

Module comes with lithium battery protection (So the lithium batteries are with or without protection board doesn't matter) Overcurrent Protection (OCP) Overvoltage Protection (OVP) Short circuit protection (SCP) Over Temperature Protection (OTP) Pin Description: 1 VIN: Charging port is Positive input + 2 GND: Charging port Negative input - 3 BAT: Lithium battery + 4 GND: Lithium battery - 5 GND: Output port negative output - 6 VOUT: Output positive output + 7 KEY: Output Enable Trigger Port (Low Pulse Trigger) Note: 1. in the discharge mode (charging mode KEY function is invalid), trigger KEY port 1, open the output; continuous trigger KEY port 2 times, turn off the output 2. The first time the load is connected, the output is automatically turned on. If the load is less than 50MA, the output will be turned off after 30 seconds; if the load is greater than 50MA, the output will continue to be turned on 3. Allows charging and discharging simutaneously Specifications: Charging voltage: DC 4.5V-5.5V (recommended DC 5V) Charging current: 0-2.1A Charging quiescent current: 100uA Full voltage: 4.2V±1%. Discharge current: 0-3.5A Discharge quiescent current: 50uA Discharge efficiency: up to 96% Output voltage: 5V Output current: 0-2.1A Ambient temperature: -20 to + 85 ℃ Size: 2.6x1.3cm/1.02x0.51inch Quantity: 1 Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package includes: 1 Pc xBattery Module