18650 Polymer Power Bank PCB DIY Dual USB 5V 1A 2.1A Charging Module

Description

What it is

The 18650 polymer PCBA power bank is a DIY printed circuit board that allows you to recharge electronic mobile devices. This solution is ideal for makers who want to create emergency systems or integrate power supply features into custom projects.

Features

• DIY printed circuit board for 18650 polymer power bank
• Dual USB charging (5V 1A, 5V 2.1A)
• 5V boost charging module

What it is for

This power bank is useful for beginner and intermediate makers who want to create emergency projects, for example by integrating an LED lamp. Connect the lamp to the power bank, and you can recharge the device and light up an environment.

Tutorial: How to use 18650 Power Bank

This power bank is ideal for recharging your mobile devices. Useful for beginner and intermediate makers.

What you need

• 18650 Power Bank
• USB cables
• Devices to charge (smartphones, tablets)

Steps

1. 1. Ensure that the power bank is fully charged.
2. 2. Take the power bank and USB cables.
3. 3. Insert the USB cables into the power bank.
4. 4. Connect the devices to be charged to the USB ports.
5. 5. Wait for the device to charge.
6. 6. For a quick charge, use the USB port with higher current (2.1A).
7. 7. If the device does not charge, check the datasheet for compatibility.
8. 8. Turn off the devices once the charging is complete.

Mini project

Create an emergency system with a power bank and an LED lamp. Connect the lamp to the power bank, charge it, and turn on the lamp to illuminate a space.

Common mistakes

• Do not use the power bank with incompatible devices.
• Do not charge devices for hours and hours without supervision.
• Avoid using low-quality USB cables.
• Do not exceed the maximum current limit (1A or 2.1A) recommended.

Recommended accessories

• High-quality USB cables
• LED lamp
• Protection cables
• Battery charger for 18650

Frequently asked questions

Does the power bank charge automatically?
No, it is a power bank, not a battery charger. Charge manually with a battery charger.

Can I use the power bank with any device?
Check compatibility on the datasheet. Some devices may not be compatible.

How long does it take to recharge a device?
The recharge time depends on the battery capacity and the charging current.