Sell USB 5V 1A 2.1A mobile power bank 18650 battery charger PCB board motherboard LCD charging module best price

DIY Mobile Charging / Power Treasure Board Product characteristics: 1.4-level LED light display power, intelligent automatic shutdown in non-functional state; 2. Integrated IC lithium battery protection with protection against over-current, over-voltage and under-voltage; 3 double USB output; 4. Base plate size: Thickness 8mm * width 32mm * length 69mm. Basic product of parameters: Input Port: MicroUSB (Android port) Input requirements: 5V Constant voltage power supply can be used as charging input power, the most suitable charger is 5V1A or above Output port: USB Output parameter: 5V1A / 5V2A Rechargeable battery requirements: Available battery: 18650 battery, mobile phone battery, flat battery, MP3 battery, etc. 3.7V-4.2V lithium polymer battery, can be powered by single section (chip), OR multi-section parallel power supply (chip) (not series compatible, cannot be connected in series ). (Note: increase the capacity in parallel, increase the series voltage, it can only be used in parallel!) You can connect 2-6 knots of 18650 batteries in parallel. Battery not available: dry battery, battery, 1.2V rechargeable battery, nickel hydrogen battery, 3.2V iron lithium polymer lithium battery Pay attention to the following points when installing the product: 1. The battery should be connected in parallel, the voltage should work between 3.2-4.2V, flat head 18650 and polymer battery Can be; 2, the battery is connected to the motherboard B + negative connection B-, installed anti-burn the motherboard; 3, old and new batteries, model brands are inconsistent batteries that can not be mixed.