18650 akkumulátor 3,7 V – 5 V2 A boost modul DIY power bank/mobil power alaplap/áramköri lap
18650 battery 3.7V to 5V2A boost module DIY power bank/mobile power motherboard/circuit board
DIY power bank/power bank circuit board
Product Features:
1.4 LED lights display power, intelligent automatic shutdown in non-working state;
2. Built-in lithium battery protection IC, with over-current, over-voltage and under-voltage protection;
3. Dual USB output;
4. Motherboard size: thickness 8mm*width 32mm*length 69mm.
Basic product parameters:
Input port: MicroUSB (Android port)
Input requirements: 5V constant voltage power supply can be used as charging input power, matching charger is above 5V1A
Output port: USB
Output parameters: 5V1A/5V2A
Requirements for rechargeable batteries:
Usable batteries: 18650 battery, mobile phone battery, tablet battery, MP3 battery, etc. 3.7V-4.2V polymer lithium battery, which can be powered by a single cell (slice) or multiple cells (slices) in parallel (series connection is not supported, and series connection is not allowed ). (Note: Parallel connection increases capacity, series connection increases voltage, and can only be used in parallel!)
You can connect 2-6 18650 batteries in parallel! ! !
Unusable batteries: dry batteries, accumulators, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V iron-lithium polymer lithium batteries, etc.
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 can work;
2. The battery is positively connected to the motherboard B and negatively connected to B-, the motherboard will burn if installed;
3. New and old batteries, batteries with different models and brands cannot be mixed.
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