ขาย uebtech dual usb 5v 1a 2 . 1 a power bank 18650 แผ่นบอร์ดโมดูลชาร์จแบตเตอรี่ ราคาที่ดีที่สุด

Dear, welcome to UEBTECH. Here are the latest season products, good quality and low price. If you are interested, you can read on, thank you ~ Feature: 1. This is the mobile power module accessory, 18650 board enclosure. 2. Meet your DIY's personal needs, but you must understand the basic electronic components. 3. Mainboard's own protection function: charging overcharge protection, over discharge protection, over-current protection. 4. When the intelligent output device is fully charged, it will automatically stop charging to prevent the phone from overcharging. 5. The output voltage and current are stable and will not damage the user's equipment. Specification: Micro USB input: 5V 1A USB output: 5V 2.1A / 5V 1A (dual USB interface) Charging display: intelligent digital display Battery type: liquid lithium ion battery (18650) Product size: 57mm * 28mm * 8mm/2.24*1.1*0.31'' Screen size: 27mm * 17mm/1.06*0.66'' Weight: 12g Warm Tips: 1. The circuit board is connected to the battery's negative B -, and B + is the positive pole. There is no reverse connection. If the connection is twisted, it will burn the circuit board. The battery is connected in parallel with the solder, and then the battery is assembled. 2. Please note that the insulation between the battery and the circuit board and the battery lead should not contact the circuit board to avoid short circuit. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.