Hign-concerned Chemical : None
Model Number : 123
Type : Module
Origin : China
Condition : New
100% high quality and branded 18650 Dual Micro USB 3.7V to 5V 2A Boost Mobile Power Bank DIY 18650 Lithium li-ion battery dual micro usb booster board featureLED lights show the power, non-working state of intelligent automatic shutdown;Dual USB output. Built-in lithium battery protection IC, over-current, overvoltage, undervoltage protection;18650 Lithium li-ion battery dual micro usb booster board parameterInput 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 aboveOutput port: USBOutput parameters: 5V1A/5V2A Size : 8 X 32 X 69 mm (H*W*L)18650 Lithium li-ion battery dual micro usb booster board 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.18650 Lithium li-ion battery dual micro usb booster board installation should pay attention to the following pointthe 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.
The line layout is compact and regular, with good electrical insulation and mechanical stability, and can maintain stable performance under different temperature and humidity environments to ensure accuracy and reliability.
In circuit design, carefully planned lines are like precision transportation networks, and lines of different widths and spacings undertake different currents and signals transmission tasks respectively. The key signal lines are impedance matching processing, which greatly reduces signal reflection and attenuation and ensures the stable transmission of high-frequency signals.
All kinds of electronic components are soldered on the circuit board, and the solder joints are full, round, and firm and reliable. Core components like chips are perfectly connected to the circuit board through fine packaging processes to achieve high-speed data processing and interaction.
This circuit board has a wide range of responses in many fields. Whether in the industrial control field that requires extremely high stability or consumer electronics field that pursues extreme performance, it can provide solid guarantees for the stable operation of the equipment with its excellent design and reliable performance, and help various electronic devices play a powerful role.
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