မျှဝေရန်
- Country of Origin : China
- Description :18650 battery 3.7V to 5V2A boost module
1. Input 2A, output 2.5A.
2. Supports charging and discharging at the same time 3. Press and hold the switch for about 5 seconds to turn off the power.
DIY mobile power supply/power bank circuit board
- Product Features:
1. 4-level LED light displays battery power, and intelligently shuts down when not working;
2. Built-in lithium battery protection IC with overcurrent, overvoltage, and under-voltage protection;
3. Dual USB output;
4. Mainboard size: thickness 8mm*width 32mm*length 69mm.
Basic product parameters:
1. Input port: Micro USB (Android port)
2. Input requirements: A 5V constant voltage power supply can be used as a charging input power supply, and the matching charger is 5V1A or above
3. Output port: USB
4. Output parameters: 5V1A/5V2A
Requirements for rechargeable batteries:
1. Available batteries: 18650 batteries, mobile phone batteries, tablet batteries, MP3 batteries, and other 3.7V-4.2V polymer lithium batteries, which can be powered by a single cell (piece) or multiple cells (pieces) in parallel (series connection is not supported and cannot be connected in series) ).
- (Note: Parallel connection increases capacity, series connection increases voltage, and can only be used in parallel!)
1. Can connect 2-6 18650 batteries in parallel!!!
2. Unavailable batteries: dry batteries, storage batteries, 1.2V rechargeable batteries, nickel metal hydride batteries, 3.2V iron lithium polymer lithium batteries, etc.
- Please pay attention to the following points when installing the product:
1. The batteries must be connected in parallel and the voltage must be between 3.2-4.2V to work. Both 18650 flat-head and polymer batteries are acceptable;
2. Connect the positive side of the battery to motherboard B+ and the negative side to B-. If the battery is installed backward, the motherboard will be burned;
3. New and old batteries, and batteries of inconsistent models and brands cannot be mixed.
Package Include
1 * 18650 battery 3.7V to 5V2A boost module