1.Product Features: LED lights show the power, non-working state of intelligent automatic shutdown; Built-in lithium battery protection IC, over-current, overvoltage, undervoltage protection; Dual USB output. 2. Product basic parameters: Input port: MicroUSB (Andrews mouth) Input requirements: 5V constant voltage power supply can be done to charge the input power supply, the most matching charger for 5V1A above Output port: USB Output parameters: 5V1A/5V2A 3. Requirements for rechargeable batteries: Available battery: 18650 battery, cell phone battery, flat battery, MP3 battery, etc. 3.7V-4.2V polymer lithium battery can be single section (chip) power supply, can also be multi-section (chip) parallel power supply (not in series, not in series ). (Note: increase the capacity in parallel, the series is to increase the voltage, can only be used in parallel!) Can be parallel 2-6 18650 battery. Not available Battery: dry batteries, batteries, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V lithium iron polymer lithium batteries. 4. Product installation should pay attention to the following points: the battery should be in parallel, the voltage between 3.2-4.2V to work, 18650 flat and polymer batteries can be; the battery is connected to the motherboard B + negative access B-, installed anti-burning motherboard; the old and new batteries, models, inconsistent battery brand can not be mixed.
Package Include:
1 pcs Dual Micro USB 3.7v to 5V 2A Mobile Power Bank DIY 18650 Lithium Battery Charger PCB Board Boost Step Up Module With Led
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